Pw50 wont rev out. Advice for 1st Time Kids involved in Riding.
Pw50 wont rev out check my dodgy video's out in my PW50 thread. Caddonpog Discussion starter. Forums; Gallery; my pw50 was running OK till tte other day now it starts but wont rev out, iv changed the throttle cable Lean. I have stripped carb and cleaned replaced all gaskets and O ring new plug, new air filter ,Ohms test coil and stator when pw50 won't start, please help!!!!! Thread starter zeaner; Start date Nov 29, 2004 I know someone has had this problem out there and any assisatance would be great. Forums; Clubs; Articles; Reviews. Bike runs for about 5 minutes then just bogs and cuts out. If you put a 60cc big bore kit in a PW50 and mill the head to raise the psi compression this is what will happen:. O. Got the throttle cable replaced, and found that it would start right up, but I couldn't seem to get it running good. It will only spark on the start switch on the handlebars. I have spark when I take the plug out, but only when I ground it on a head stud. It will stutter violently when it gets to 3000rpms. Bike related chat. Brand New PW50 won't start. every kick it runs a little longer till Was it revving out before? What have you altered between it working and it not working? _____ trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips. Brooksville, FL US Jakes Dad 6/1/2015 - 5:28pm. Think it might be a faulty stator. PW50 Riders Photo/Video Page. When in park if i slowly bring up the rpm i can get it to rev out, if i step on it it bogs out. - under the tank, a pw50 won't start, please help!!!!! Thread starter zeaner; Start date Nov 29, 2004 I know someone has had this problem out there and any assisatance would be great. Chainsaw idles but won’t rev: If your chainsaw doesn’t rev up after idling, consider examining the air and fuel filters first, ensuring they are clean, not gummed up. I've checked the spark plug after it dies and it's dry, so don't think it's a flooding issue. Pw50 starts but no power it wont rev. My sons ktm 50 will not rev to full throttle it bogs down and cuts out soon as you let throttle back of it picks back up. Nollaig New member. It’s like it “runs on” for lack of a better description. Start's OK, but won't rev and Start/Run switch makes no difference to either s Well my 6 year old seized our well used PW50 in the desert a few weeks ago. un plug wires under seat and see if it will rev out. Repeat above 4-times by dunking back into the warm or hot water (as hot as you can stand it) for 2 Hi all, This one has me absolutely stumped ? I bought a good condition 1986 PW50 for my 7 year old's birthday as it would be a easy learning curve for him. with the secondary i can move the bike easily when its in gear. I always used shell diesel oil in the PW50 and the clutch loved it. Jake knows when the powervalve screws up, the pin that When I engage the interlock 4x4 switch the motor starts to cut out, running rough, like it wants to stall when you give it a little gas. Won't start for awhile, but then will fire back up. 6K views 8 replies 4 participants last post by Jlkey Sep 26, 2015. i'm guessing the scooter engine and your pw 50 are very similar, so i dont know if you'll get anything to work. 6K views 4 replies 3 participants last post by lateburd Dec 17, 2019. air to guarantee cleaning. Hey thanks guys, I ruled out the idle valve and the fuel pressure with a rigged up gauge hooked to the injection rail, I'll try the hi all i have a 2010 klx110L with a battery and starter delete and whenever i try to put it on the limiter it will sputter right around 9k or so. I never even As for the air leak. Could cause a problem I suppose. I have also plugged Remove the carb and clean it inside and out. Did some cosmetic fixing up and replaced the reeds . make sure you oil pressure swtich is working located next to the Vtec solenoid, should be a green plug also check and make sure you have enough oil without enough pressure you 98 xp951 ltd - wont rev out. With the carb out of the bike, most guys like to remove the bowl, turn the carb upside down (do not press on the floats) and the float arms Another thought, has it ran since you switched out the wiring harness. GG 250X it runs better w/ the choke on (unless its real warm out and my son is riding)- w/ my 145 lbs it'll hardly rev up w/ choke off. It also crapped out on the top end. Turns out it's not, I didn't realize it was a 2 stroke instead of a 4 stroke. 2007 PW50 wont idle with choke off. Fluid was over-filled 2 quarts. Does my QT50 have a rev limiter or some other device which governs the top speed? I notice sometimes at full throttle it will run rougher, make a different noise, seem to hesitate and check up. As soon as close the choke the bike sputters out and dies on me. I´m really running out of ideas here. Check float level in carb, make sure it’s not getting stuck and not allowing the bowl to fill. I have ordered a new stator today, I have tried to BGM stators, but want a new one to baseline from. PW50 Spare Parts Questions. The plugs keep fouling, it seems to run rich, smokes a lot from the engine and exhaust until its warm and ran for a while. My sled won't rev out all the time. Share More sharing options Followers 2. Only 1X but shifts at I just picked up a little 96 yamaha pw50 2 stroke dirt bike, and the thing doesnt want to start for some reason. Ran out of petroleum based solvent so h Hello everyone, I have been at war with my xtrainer all week and have finally decided to let go of my pride and ask for help. 34 posts · Joined 2010 Add to quote; Only show this user #1 · May 30, 2011. Wouldn't start again. PW50 2 stroke wont start? I just picked up a little 96 yamaha pw50 2 stroke dirt bike, and the thing doesnt want to start for some reason. DEALER SOURCED FROM YAMAHA EXETER Good luck! 2001 GTX-DI - starts fine, idles rough, won't rev up past 3-4k rpm in water. Stripped and cleaned the carb and start/run switch. Yamaha pw50 won’t start. It would bog/stutter at 10k. W. Sign In Upload. I thought it should have easily reach much higher revs. The car still shifts and drives fine otherwise. T. Still will not start. 5, and now 6k. Check float level in carb, make sure it’s not getting stuck and not allowing PW 50 won't rev. When you pull the left or right brake lever, the it revs up perfectly. The idle curcuit is plugged up with varnish or trash. I It starts fine, idles fine, revs fine and high. I have 2 Pw's and so have had the opportunity to swap parts off my perfectly running one. 2. Posted May 17, 2023. If it does then remove the carb n check the floats n fuel valve. Partially blocking the intake with the air filter out didn't seem to make a difference. I assume it's due At first I was thinking fuel, but it happens so intermittently. It was left standing for some time and no longer runs. Just slowly got worse and died. Took it out again and it seemed to be running good. Start/run switch. The squish was checked towards the exhaust side of the head, which has the most cut away for squish is . The long valve won't fall in the cylinder just pull it out. Check air screw on carb. Brand new carb, new air filter, new spark plug oil injection diconnected and fuel mixed at 40:1 the bike wont rev up it will start if i hold the throttle open but it wont rev past idle screwing with the air mixture screw does nothing at all anybody have any suggestions? I also took the silencer off to see if it might be plugged and it ran the same. Still won't start. Sounds Verify fuel to the carb. Yamaha PW50 won’t stay running . ez50 Well-Known Member. it only has a few hours on it and I have the throttle screw out to the recommended 7mm wich helped it a little, but I feel like it should go a little looking for some help. General Board. Drain and fill to mark with Honda fluid. For Sale 50, 80 & 125cc Bikes or parts. Usually when it revs up on the stand but has no power under load it means that it is running lean which could be from a lack of fuel, too small of a jet or an air leak somewhere allowing air to get in. I just bought my grandson a pw 50 ( probably around a 1980) that won't run. Jakes Dad. everything i tried just disabled the scooter (wouldnt even start). changed the plug. Check your jetting vs. facebook. Pulled the carb, drained the float bowl, and everything looks fine. R. Has worked fine 10 minutes this summer, otherwise it behaves like this. I recently purchased a 2000 KX100 . So we come back and decide to trade straight across for my stock banshee. Had throttle slide 180 off so it was full throttle all the time. Your PW50 will rev out much quicker and run more efficient because this plate will allow the exhaust port to properly open at the correct time as the piston goes up and down. 69 posts · Joined 2010 Add to quote; Only show this user #1 · Feb 13, 2010. Disconnect and throw away the rev limiter, drill out the muffler baffle a little, and the motor rips. being stuck. I have to give him a tlittle Hi, I've received some great help on here previously for this old PW50 I'm trying to get working properly again and have a new problem with it. I checked the float height and it's 13mm. Then after reading and trying and the %$^#@ still wont go go back to the dealer. May 30, 2015 #1 Hi, So, if you try to engage the throttle, the engine cuts out. Any suggestions? Post Reply. May have had the gas evaporate and left oil in the carb, so it won't start. I'm guessing it won't but check those two things and Using the stock head, doubled up head gasket and sprayed copper high temp gasket seal on every thing. First ride yesterday (he now fits it with shaved seat, but is also now out of warrenty) and the clutch does not seem to engage. 9di engine code 762, its developed a fault where it wont rev past 3000 rpm, sometimes you start van and it runs fine untill you switch off and when restarted it wont rev past 3000, its mainly running like this now. Any ideas on what I could do to get her running right . Put the air screw at 1 turn out and small changes to that. Carburettor: see below. Save Share I think o figured out what it is. No doubt there is a problem here, but you do not have to take your weed wacker to the repair shop yet. Engine runs fine at low to medium revs but as soon as I accelerate beyond this the engine won't rev and even tries I do not have a service manual for this bike so I'm guessing as I go. Got it out then other day and it wouldn't start. After I rode it for 15 seconds I thought I knew what it was. Starts good, runs good, revs out. 3. A leak after the carb mixes it's air/fuel mixture leans out the engine causing a high idle. Then started again, albeit rougher than normal, and won't rev past about 1200 with more vibration than usual. Once they learn to go and stop, then it's time to move on. Started boat and went up river, noticed a slight vibration coming thru the floor and interference on the fish finder screen. May 27, 2018 #1 Hi there, I just bought my son a older model pw50. I have tried adjusting the idle and air screws multiple times and after I get it You can adjust the oil/throttle ratio if it burns too much oil. Then I'd jet it. My 1st time riding this bike was just a few weeks ago and I pretty much immediately noticed that the bike refused to rev up into high RPMs, instead it would hit a certain point at I'd say around 1/2-3/4 throttle where it would just sputter and Up for grabs is THIS BRAND NEW 2023 YAMAHA PW50 50CC KIDS BIKE, WHICH ONE OF YOU LUCKY REV HEADS WILL WIN FOR JUST £8. For sale is a 1983 PW50 comes with original parts(see photo) it starts and runs but won’t rev out clean. Jets were partially obscured but have cleaned and blown through and all appear ok now. 2005 PW50 Honda 2012 CB250 Alright guys, I have a K5 750. Remove carb casting from water and blow out all passages with 90-lbs compressed air. Download Table of Do not turn the adjusting screw out more than 7 mm (0. Make sure that it is backed out. I had most of the bike pulled apart to replace both crank seals so maybe I've put something back incorrectly. At first I was thinking fuel, but it happens so intermittently. Posts. General. PW 50 wont run without choke on. Pulled the cylinder off powervalve cover and checked everything moves free. Since that day , a few weks ago, i have changed the gas (which I have acquired a PW50 which is old but essentially in pretty good nick. Ps if this all seems too hard, just rev the life out of the bike and put the choke on - occasionally this can suck rubbish out of a jet ( more importantly, this is when you realise the choke got caight in the crash and it's running badly because the choke is on) This was on the stand and in the driveway. The suggestion of the parking brake hanging up makes perfect sense. This video is for almost all 2 stroke dirt bikes that won’t rev out Won’t rev out . clutches seem to be working as i left the cover off. Bought an 81 P-Dub about 5 months ago for my 5 y. May 4, 2004 2,431 0. It will run with the choke off if i rev the bike but if I try to let it idle it dies. Hi Guys thanks for all your responses. After numerous hours of adjusting the carb, playing with different settings I've got a check engine light and the car won't rev past 3000rpms. Before I replaced the crank seals it used to rev by itself but it was much more erratic than this. Solution: look for a TORS removal kit. T 60km @ 4700Rpm. Under load while driving not so high in RPM. Safety device only. 02 pw50 won't unless choke is on. Went back to a 150 main. 570 won't rev up. optimally, when the rev plate, both gaskets and head are on and the piston is at top dead center, the top edge of the piston should be flush with the milled top of the cylinder, correct? Hey I have a similar problem from earlier. Thread starter Nollaig; Start date May 30, 2015; N. PW 50 won't rev. ricky_191 Well-Known Member. Hello all. Got tired of cleaning so I bought a new one. It may be a good idea to write down the number on the jet in case you do. The bike sputtered and blurped, and could not rev up with the air cleaner on it. Jump to Latest I have a 2014 ranger 570 had it for almost a yr and all the sudden it will not rev up it cranks up fine but when I give it gas the motor will not rev up. Dec 4, 2023. I'm beginning to think its grounding out through the switch. It should be behind the front number plate some where. fresh gas. Air filter: Make sure it is clean and unclogged. Usually it’s 1 1/2 -2 turns out from seated. My son's Yamaha PW50 won't kick start. Check electrics. General Board PW50 Technical Questions. Posts: 1 PW 50 won't rev Dec 1, 2009 It will barely start but it wont rev or clean out. Hi all, This one has me absolutely stumped ? I bought a good condition 1986 PW50 for my 7 year old's birthday as it would be a easy learning curve for him. Ive seen stock bike with stock jetting get a 3 inch hole knocked in them, and wouldnt rev. Members; 106 Recently purchased boat, had it out on the water 3 times (Salt water ) each time out was seeing @ W. had similar thing happen on my son's 70 and turns out that some critter decided to build a nest in the airbox. Share More sharing options Followers 0. A used non runner PW I purchased actually had the seal pop out of the cases, it was sitting right up against the back of the flywheel when I took it apart. Fixed that issue & it hasn't started since. A 2008 Polaris Sportman 90 won't rev up but starts and idles fine. M. Jun 5, 2018. ReedRulz. We have noticed that it is flutterting up high. More 1 yr BSMELSER changed the title to PW50 died and won’t start; GG 250X. The throttle position sensor when I unplug it runs #2 IN AND OUT. It’s been running fine for the last few times we’ve gone out. If he is going on a flat or uphill, the motor does not rev-up. Does the My son's PW50 acts like it has no power when the bike is under a load. 2015 PW50 Won't Stay Running - Tech Help/Race Shop - Motocross Forums / Message Boards - Now it won't fire and stay running. The bike cranks great and once warm enough to get off of the choke it idles good and smooth at about 13-1500. comhttps://www. Ive replaced the top end, cleaned the carb, new reeds, and blocked off the oil pump so I just use premix gas now. 04-05's are really critical to jetting and air filter prep, as the filter area is small as is the airbox. Help Us Out? Facebook Twitter Reddit Pinterest WhatsApp Email Share. Recommended Posts. Posted July 7, 2010 Remove the carb and clean it inside and out. It gets fuel into the carb but the carb is not letting any fuel into the combustion chamber, I have cleaned it Bought a brand new PW50 for my son, but was too small to ride it. optimally, when the rev plate, both gaskets and head are on and the piston is at top dead center, the top edge of the piston should be flush with the milled top of the cylinder, correct? SOURCE: pw50 problems stating bike hey there matey,, just to run a few things with,, have u taken the spark plug out and cleaned it up,,try a new plug 1st,, to be sure, or if u have a new plug,, take out the spark plug place it back in its cap and rest it on the cylinder head and either elec start it or kick it over and make sure u have a spark ,, if all is ok on the above,, Won´t rev up or run properly. I've even The worn piston can drop power, but won't cause the run problem you're experiencing. Posted July 7, 2010 If u have spark n compression it must be the fuel delivery system. Maybe 2,500. Need to give it a good cleaning and lots of wd40. Save Share Reply Quote Like. I’ve checked the needle valve , blew out the jets and changed the air filter aswell as the plug any ideas what the problem can be?? When it's stone cold it starts up no problem and you can ride it 100 yards and its perfect after that it just chokes, will still idle but won't rev! Im a car mechanic by trade and do know my way around a bike (I thought!!) So far, started with the basics, stripped down the carb and cleaned and blew through all the jets cleaned out the float ECt ECt 500 scrambler wont rev out. I've got a pw50, premix, 75 main, uni pod filter, boyeseen reeds, port matched intake, and spark arrestor removed. Threading the screw in will reduce the amount the throttle will turn and threading the screw out will increase the amount the throttle will turn. Is there any benefit? Yamaha pw50 won’t start. Discover what these problems are and how to fix them permanently. I had Crankshaft bearing seal replacement on mj50, qt50 and pw50. It's a POS from the Dr and can't get any help or cooperation from him. Seemed to pump fine in the vice and the plunger moves in and out. #3 CHOOSING THE RIGHT SPOT I got a new stock pw50 exhaust if you want it. fresh gas Hello I have a 2019 pw50 it starts no problem but will not rev up it kills the engine. whenever I take the airbox out of the equation it revs perfectly fine and will rev out in any gear. 250 EXC Two Stroke won't Rev Out. seems to have spark (although not the strongest I am pretty sure that it is the same as it has always been) It will start briefly but will not rev up. It should snap closed with a definite "clack!". 5, then 7, then 6. Guys, I've got a 2016 PW50 and over the last year it has become difficult to start, especially on a cold engine. and wont move my girlfriends kid (7 years old but the size and weight of a normal 5 year old) anywhere near as fast as they do on the videos online. If anyone has any idea please help me out i have put so much time and money into it and im about to go crazy because it pulls so strong in the low rpms but when it hits 8 it sounds like the rev limiter. Take out the oil and clean the tank and the oil line. boarddesign New Member. Plug, lead, coil, wiring loom and grounding, CDI, stator, and flywheel magnet. I pulled it runs better w/ the choke on (unless its real warm out and my son is riding)- w/ my 145 lbs it'll hardly rev up w/ choke off. I’ve checked the needle valve , blew out the jets and changed the air filter aswell as the plug any ideas what the problem can be?? 1. And also, it was idleing fine, but now wont Our son has a 2001 PW50 and has started racing flat track. Low end power and driveability is ok. it starts and warms up as normal the first time i open it up it revs out cleanly up the gears but then it won’t rev past 6000 ,up to 6000 its as normal, im binning the zeel as i dont hello, initially my vehicle could rev up to half of the rpm then shut down, sent a driver to take the vehicle to the mech. I have a 1999 PW50. I have got it a couple times to hit it for a few seconds but Pull the spark plug out and kick it over many times to see if fuel comes out the hole. these can get plugged and it won't run at all. I can open the drain screw on the bottom of the carb and gas flows out, so it's not starving of fuel. Joined. Is A Yamaha PW50 For Kids. TL;DR: It was gas in the tank. I know there are several different "versions" of the wiring harness floating around Ebay with different end conectors, maybe trace through the wires (not an overly complicated wiring diagram) to make sure one of the connectors isn't switched around. and he buys abt 3ltrs of petrol in it instead of diesel, i filled the tank and sent the vehicle to the mech but now it is not revving only idle, when we accelerate it goes off but when we start it up it starts but no rev, pls advice Attached is a youtube link which is a sound recording of the engine being initially held at 1/2 throttle and the second at full throttle, the engine won't rev out and has the 'pulsing' of the engine hesitating. Thread starter Mrwyoming; Start date May 27, 2018 . Oil line being dry isn’t good. in a couple of kicks. I swapped out my expensive spark plug for a basic NGK it came with just for the hell of it and it didn't change anything. Idles but wont rev up. Unfortunately, I don't know what the spec is for the PW50. 1. When I first put it back together it ran good on choke, but sounded like it was running out of gas without choke on. 055". But absolutely refuses to rev up! It just does a blaaaaaa kind of thing and returns to running perfectly at idle. Still bogs out the same. More sharing options Wyatt. It was running fine before fiddling with the amp XCSP 500 won't rev out. He said that taking the seat off would narrow out the issue of the seat sealing off the airbox. Jump to content. Remove the 2 allen screws that hold the base on the cylinder. I have checked : fuel filter and lines , muffler and port clean , carb removed and cleaned , fuel bulb is holding fuel , adjusting the high makes no difference , plug is clean and tan in color , I haven't put in a gasket set yet . Cleaned the air filter and reoiled, Installed the new air boot and airbox assembly. And it was a safety feature- in the start position it wont rev up and take off, acts like it has a rev limiter set at idle. Clean the bowl and the filter if it has a filter. Advice for 1st Time Kids Involved in Motocross Racing My PW will not rev past 1/4 to 1/2 throttle. I don't have a compression tester but it seems to be good and my friend said he just put a new top end in. I am using Castor synthetic pre-mix Usa small piece of wire to unplug the pilot jet. Lots of little things to check these guys have already mentioned. Solves my problem every time #2 IN AND OUT. I have to keep blipping the throttle, and then switch it to Run to keep it going and get it to rev clean. If I rev it a few times, it will sometimes come back down. A PW50 has approx 2hp from a 50cc engine. its also hard to start requiring many kicks. After cleaning/inspecting the carburetor I have found a couple of issues. At first it will rev up ok but after a very little riding it bogs down and then it won't start. about two weeks ago it just all of a sudden decided that at full throttle it wanted to Bog down, I took it home and adjusted the throttle cable and all was well. If i step on it right away it bogs out. Usa small piece of wire to unplug the pilot jet. 4th time out was in shallow water at the boat ramp prop bottomed out and engine stalled. Start's OK, but won't rev and Start/Run switch makes no difference to either s Install this special CNC aluminum PW50 POWER PLATE under stock 50cc cylinder for a mid range and top end power increase. 5–3. We have more kids that will be ready to ride it before we know it. I won't have time to go back out tonight, but hopefully tomorrow. Once in the bike though and noth YZ250 electrical issue, won't rev up. If your idle increases then, but nowhere else externally, you have an internal carburetor problem. then the next time. It will kick over fine, barley idle, and then bog out and die when any throttle is applied or it 1st, it won't idle, and requires constant throttle blipping. My son's PW50 will not start now. Link to comment Share on other sites. Make sure restrictor is out of exhaust and it’s not packed full of carbon. Unblocking it made a little improvement, but not enough. To get maximum performance and power from a two stroke 50cc engine you need to get it to rev high. it runs better w/ the choke on (unless its real warm out and my son is riding)- w/ my 145 lbs it'll hardly rev up w/ choke off. I took the cover off made a couple of white lines at TDC started her up - 1) A few small sparks from the points but not much, I think they are OK. I don't see a pilot jet ??? next to the main jet but there is a non threaded hole there. 1&7. If you take the air filter off it runs better but still spits a little gas (grey mist). sieg likes this Pilot air screw and idle screw respond to adjustments but still won't idle. Always make sure the throttle grip free play is adjusted to 1. 5k in neutral. Location. . It has great compression, and spark, but it is not getting any fuel. PW50 starts ok if it is cold. Yesterday I was on the motorway and the car was very sluggish to accelerate. It started up, as it always has. I just picked up a 2003 660 that wouldn't rev either. Over the next few days it wouldn't rev past 9k, then 8k, then 7. Once in the bike though and noth I have had the same issue, it is the needle valve itself. Any idea what is When you rev it out and then chop the throttle the rpms hang for awhile then SLOWLY drops back down to an idle. Like it is on start mode all the time. We have The parking brake tests fine but I unplugged it anyway. Thats crazy! If you are on the hunt for a second hand one then also check out Facebook marketplace, they do appear on there from time to time. Reply. Between carb and air box. The muffler free up was important because Yamaha run a slightly rich main jet for the stock exhaust. I replaced the old one with a new one and it was rev city. If it's defective the engine won't rev. When it hits that certain rpm, like clockwork, the bike bogs down almost like a rev limiter. When I kick with choke on it will occasionally run for about 5 seconds and then die out. Starts and runs fine, however it won't rev past 3000, it also shutters just like a rev limiter, and also won't idle for very long before it stumbles and dies. The "start/run" is an overall good idea, the only problem is it shorts out when it gets wet. When I put it on the centre stand it does rev up a bit, but doesn't seem to go as hard as it used to. Advice for 1st Time Kids involved in Riding. rucka356 wrote: Grip never sprung back to no throttle when she took her hand off. 2001 yz250 Revs HIGH when choke is off Hard to kick start. every kick it runs a little longer till 02 pw50 won't unless choke is on. PW50 2021 motorcycle pdf manual download. Original OE pump from '06 w/39K on it. First suspicions are fuel system problems, though my mind may be playing Posted by u/thomas_the_tonka - No votes and no comments Start: since the PW50 has no neutral, when in this position, the bike will start when kicked, but will not rev (thus engaging the clutch) due to the CDI retarding timing. I have the belt removed as I started chasing a possible clutch issue, but that does not appear to be the issue. 110psi compression last night. I tested it out yesterday and it idled in "run" with no issues. air box setup. Since that day , a few weks ago, i have changed the gas (which Here is a search result for pw50 in the thread title: 2013 #6 Idle screw all the way in or even partially in could sound like full throttle. measure the thickness of the rev plate plus 1 base gasket. My sons PW50 dose the same thing, Also noticing that when you blip the throttle, it revs out good (float bowl full), but then idles waaay down and almost stalls (float bowl empty and filling slowly) and then the rpms will pick back up again after a few seconds and level out to a normal idle. It acted like there was a rev Unplug the white coupler from the throttle switch. Get the motor running I bought a good condition 1986 PW50 for my 7 year old's birthday as it would be a easy learning curve for him. 28 in) before con- sulting a Yamaha dealer. Help I’m working on a Yamaha pw50, i’ve cleaned the carb countless times and it looks brand new, i’ve replaced the plug and air filter and i have a coil pack on the way. Check for air leaks at:1. It worked last year. Solves my problem every time Trying to fix a PW50 thats dumping a heap of oil into the carb. 97! Only 349 total tickets available. They have a "funny" kill switch. Put new carb & it fired right up. Ok so I picked up this bike the other day it wouldn't rev out, it starts great and ldles fine, I adjusted the air screw to 1 1/2 turns out, cleaned the carb and even changed the jets from a 40 to a 42, and 150 to 152, moved the clip from the 2nd off Tohatsu 50hp Won't Rev. Model FS 85, it was running fine then got rained on some and now it won't rev up , it will idle all day. Also, clean the carburetor if needed. It wasn't running because of 2 reasons 1 I didn't clean all the orifices Inside the carb. stejh311; Mar 11, 2020; Yamaha MX & Off-Road Dirt Bikes; Replies 7 Views 5K. 5 mi) , couldn't get it to rev out, couldn't get it to go above 36 MPH, wouldn't As for the air leak. Any I took apart the carb on the PW and very thoroughly cleaned it out, blowing it with air and in some cases using a needle to punch/"rod" out any debris in the smallest of holes in Usually related to TORS, specifically the safety switch in the clutch/park brake assembly. There was a hesitation halfway up the rev range, where it would bog/gargle, and then if you held the throttle open, it would get past that, and rev to the upper range nicely. UPDATE: ok so I Figured out why it wasn't running on its own. My son has a PW50 (2000). every kick it runs a little longer till Start: since the PW50 has no neutral, when in this position, the bike will start when kicked, but will not rev (thus engaging the clutch) due to the CDI retarding timing. The guy had taken it to a shop and spent $400 and they still couldn't figure it out. Checked for spark and it seems to be getting a decent spark with the plug out of the bike. 2005 PW50 Honda 2012 CB250 Honda 1999 CT200 Honda 1985 CT200 Trike. (he cant even make it up a small hill) when the bike is on the center stand it revs up how i feel as it should. Member. We bought it new and never had a problem. It has new reeds, carb has been cleaned out. Also remove the rev limiter box completely while testing - it does nothing except blocks starting in run mode and limit revs in start mode. Put everything back together completely (ES Control, SRS switch, etc. If you get it to run, then run it hard for a few minutes to get it cleaned out. The kicker moves freely. Turning the fuel screw out makes the idle higher and turning it in kills it. After mashing the throttle for a while and returning to idle, it will spend some time constantly dying from idle. Carburettor Adjustment - H Screw Focus jeremy fountainthemowermedic1mail and business inquires themowermedic1@gmail. This will disable the start/run mode but will still function to shut the Also when I put the bike on the kick stand and rev it up, it sounds like it wants to hit a power band but it can't quit reach it. Jump to Latest 18K views 47 replies 11 participants last post by TaylorG Jan 3, 2021. Sort by Oldest first Oldest first And when you lift the back wheel up, it revs out and goes good. The little rubber tip wears just slightly and won't seal properly. They could be plugged up. 2) If I put the timing light on and rev her up the timing scatters all over the shop really badly. If this is the wrong place I’m sorry. flip6 New Member. I drove 10 miles missing badly couldn't get up to 50 mph. By Lucas Hansen, April 25, 2022 in Honda 2 Stroke. The aftermarket pattern fuel taps fitted only had a bore of 3mm and the main tap turned out to be partially blocked. My 60 plate shogun 3. The main key should have a hex 2 stroke PW50 revs up but won’t idle . Basically, she'll start up fine and idle around 1500-2000 rpm (full choke) but upon going to 1/2 choke or giving her any throttle, she dies. Products; Vehicles; More . It will then rev right up to very high RPMs and stay there but as soon as I let off the gas it won't rev up anymore. It rides fine with the throttle open but as soon as we stop, it completely dies. TheGreenZebra; Sep 19, 2016 Hi everyone, new to the site. As the throttle turns, part of the throttle tube will butt up against the screw stopping it from getting full throttle. Cleaned the carb, changed gas, checked all the coils per the manual and all show good. It barely has enough power to get going and won’t move at all unchoked. I removed the red strainer from the pump and discarded it. If he is sitting on it going down hill the bike works fine. that came with the pw50 and 80 most people take the washer out so the bike breathes better chances are if it is an older pw it all ready has Engine starts/revs up fine on stand but, bogs down when actually ridden/when under load, (happened to me on a PW50), or maybe even a critter that made a home in there What makes the most sense is a tip I got from a fellow dad. I have so far replaced with new, the left and right crank seals, Take the carb apart and clean out the 2 jets. Bought new coil. Man what a difference. Need to clean out the pilot jet with wire or something, cleaner and air doesn’t work the jet is too small. #3 CHOOSING THE RIGHT SPOT A weed wacker that won't rev up has engine problems. When I put it in drive it it hardly gets above 1200 rpm - then all Of a sudden it will kick in and seem fineand then all of a sudden it will go back to Posted: 20:13 - 12 Jun 2019 Post subject: GS550 Wont Rev Past 6000-7000rpm Under load Bike seems to rev fine in neutral, 9k-10k rpm, as soon as you put it in gear and ride it around it doesnt like to go anywhere above 7k, it also seems to make some noise when its under load aswell, but only when it hits 6-7k, any help very appreciated! I have a sportsman 90 that starts right up, but will not rev up. I took off the silencer and tried and there is still no start but I did check the header. 2 on the head side of the cylinder, mill off the thickness of the rev plate plus 1 base gasket. o First few times out it rode really good and had lots of power. So far I've replaced the spark plug and air filter. I'm ready to move on to won't rev up. Be careful using compressed air, because you may lose the pilot out of your hands. Just touching the throttle bogs it instantly. On my sons PW (when we had it) it is a simple thing. full secured and it could have a vacuum leak which will decrease the negative pressure allowing for Re: '03 RX DI wont rev past 4000 Ok, Finally got some time to check it out a bit more. Oct 23, 2013 #15 Hi all, yeah I put it on a gas cooker because it's less trouble them starting a fire. Now it wont run on choke. I have a '01 PW50 that won't hold an idle once I close the choke. Even if I stepped on the accelerator it was very slow getting to speed and the rev counter hardly goes above 2500rpm. I recall a slight play in it before it would grab when kicking. I have new carb,plug. Get him an XR50 the seat height is only about an inch or two more and there are tons of hop up's for those things. Since i had to change the piston, I went ahead and ordered the 60cc yamaha piston and gaskets from the 84 60CC 3 wheeler and had the head milled and the cylinder ported and threw on an FMF pipe and spark arrestor. Fuel cap: Make sure it's hand-tight. Am I looking at carb, reeds, or something totally different. I assume it's due I had to turn out the screw about 6 turns to get it to idle correctly. Remove the base and gasket. Assume the copy carb works differently. Pull it out and hold it to the light, if it is at all fuzzy it's plugged. the engine cut out is normal when you select diff lock, the computer won't let the engine rev until the diff lock is fully engaged, which can take quite a while sometimes. Q. Okay here goes, pw50 which has been running fine starting to quickly loose power and stalled and wouldn't restart. 5 years ago and around the second week of owning it, the bike will not rev past 9. Also, remove the water trap bowl at the base of the gas valve on your tank. Next, you need to adjust your carburetor’s adjustment screws and optimize the high-speed RPMs by turning the screws. 1993 Polaris Trail boss 250 4x4 idles but wont rev up when u hit the gas. If . Use some carb spray to clean out the rest. C. remove pilot and main jets and cleaned,air/idle screw 1 1/2 out, Removed all gas replaced with fresh EDIT: Figured it out. With no airbox or filter it was running lean and would not rev beyond 1/2 throttle. I did plugs oil battery etc. First ensure fuel is entering the carb by removing the fuel drain screw on the bottom of the float bowl to see if fuel comes out. WHERE IT ALL STARTS! TRAINING WHEELS INCLUDED!! Free nationwide delivery to the winner. good luck though! 2019 Viking 700 EPS Ranch Edition wont go over and starts surging/cutting out at 12 mph. mikeh251 Discussion starter. I recently repaired a Kx 65 with identical problem that was caused by a loose ground wire connection near ignition coil. Seems to be running rich out the back (greater amounts of white smoke than normal, maybe the occasional backfire). If I run Check your ignition grounds. It idled and ran great in seconds. Had a new piston The bike hasn't been running to my knowledge for 4-5 months. I have tried 3! carbs, new petrol, new plug, new coil, unplugged the starter switch, compression at 120 psi, new air filter and housing. #8. com/themowermedic1https://www. Stonecold754 Discussion starter. and when i try to rev it out in any gear it'll do the same thing but worse. Jump to Latest 14K views 20 replies 5 participants last post by dbest1197 Mar 6, 2015. on the piston. There is an o ring I had an issue with my '06 and the fuel pump last year. Then remove the oil tank from behind the number plate and the feed hose. Is there an idle adjustment on that carb? If so, where is it? 2nd, (and I think this is tied to the 1st question) it won't rev out when the bar switch is on Start. If the screw bottoms out or if the screw wants to be set more than 4 full turns from bottomed out (or falls out before reaching the stumbling stage) we'll need to adjust the pilot Usually related to TORS, specifically the safety switch in the clutch/park brake assembly. The spark plug is black and has a 65 main jet. Jump to Latest (6 volt) front mount on my 1948 8n lost all spark reset the timing now it wont rev up . Posted April 25, 2022. ) and it is starting and running as I expect it Now it won't idle and when I tried to ride it it has no power. If you rev it and hold it at higher rpm for like 2 seconds, it will start to choke down. The PW50 is a kids dirt bike that has been in production for over 40yrs. The choke was stuck - due to the slide in the carb. Forums. 5k rpms under a load. This screw works as a throttle stop. -With Sito+: Cleaned and rebuilt 3 carbs (2 20/20 and 1 24/24), swapped out the carbs in sequence, dialed each one in so that I would idle and gave decent throttle response, tried all the jets on each one, took for rides after each jet swap (1. Then, I was thinking a wire was shorting out, but typically, if that was the case, it would kill it completely. Aug 24, 2011 #6 CALLING ALL ELECTRICAL GURUS back on today and back to the sputter and won't rev off idle. non cosmetic mods I have are big bore valve springs cam valve Wouldn't rev out. It was running fine then In my opinion, the PW50 is a good beginner bike and that's about it. (This has never happened to me). Clean carb well. 2008 Yamaha PW50; Open Questions: I have had the same issue, it is the needle valve itself. So then I put my multimeter on the battery and started it. it dont back fire like its still out of time or could it be . It ran great, parked it, started it up and it ran like crap. Mrwyoming. I bought a PW50 for my kids, knowing it needed a throttle cable replacement at least. Hope this helps. youtube. Rich Rohrich. It just blubbers and dies. poured some fresh gas in the spark plug hole, kicked it over and nothing, wont even sputter, spark plug came out wet with fuel. i mean, who looks in an xr70 airbox more than once ok, heres the senario, my 4 year old has been riding his pw50 for several months once a week, last week he gets finished a hour ride and daddy (180 lbs) decides to take his bike for a quick putt, after about a easy 2 minute ride the motor loses all power, won't rev out and stalls, i tried to Trying to fix a PW50 thats dumping a heap of oil into the carb. Even at idle when I step on the accelerator the rev counter barely goes above 3000rpm. Nov 24, 2009 #1 Hi All. And be careful not lose the pilot jet. Blow out any other holes you see in the carb body and float bowl. Carb and engine intake. stejh311; Mar 11, 2020; Yamaha MX & Off-Road Dirt However, now it can barely idle and won’t reach over 1500 rpm without the choke. Mrwyoming; May 27, 2018; Yamaha MX & Off-Road Dirt Bikes; Replies 4 Views 7K. Also, has it got any compression. No matter what I try, I can't get it past that rpm. we ran it the spark plug blew out taking the threads with it. Thread starter mxmom112; Start date Sep 8, 2006 check your airfilter first. Posted July 6, 2010. Most of the time, they won't even pop with a bad seal, though. quinskawi Discussion starter. The QT50 does not have a governor or a rev limiter. I have flushed the tank, cleaned out the carb - which had filled with 'varnish' like old petrol deposits. May 27, 2018 2 0. 2008 Yamaha PW50; Open Questions: My son's 2000 PW50 has been running rich since we got it. 5 mm At the time of writing there wasn’t a single PW50 available on eBay for the USA. You would be looking at the connections between the carb and the cylinder. codeman normal? Pull the throttle full open and release it. I have cleaned the carb several times. after driving about a mile its started surging/cutting out at and wouldn't go over 12mph. " Triumph Sprint ST 1050 Picked up a 2013 PW50. Get it good and warm and reset the fuel and air screws - because they won The bike hasn't been running to my knowledge for 4-5 months. It is moving fine now but, if I put on the choke when the bike is running it doesn't stall out. Dirt Bike Discussions By Brand. 2019 Viking 700 EPS Ranch Edition wont go over and starts surging/cutting out at 12 mph. Pull the carb and just take it apart and spray a good carb cleaner through all the ports and jets, blow out with compressed air. YZ165 YZabian. 1993 yz 125 ran away now won't start - need help. It starts and idle's fine, switch it to run and it rev's out of control. Jump to Latest 13K views 8 replies 6 participants last post by Caddonpog Jun 1, 2011. Instead, I inch the throttle very, very slowly and eventually the revs pick up (say after a few minutes) and I head home with the engine in fine form. Joined Sep 14, 2013 Messages 347 Reaction score 4. My son 2020 pw50 will not rev out and and I do have the start switch disabled and starting doing this after riding it in a muddy day and I’m kinda stumped on it I have done a lot things and can’t Pw50 starts but no power it wont rev. F. it fires right away but just wont stay running. I lowered the clip on the needle to richen it up a bit in the middle. It was wrecked, HARD, in the side when I bought it. clean filter. I checked all 6 fuses on the mpem, and the 30 amp one in the rear and they were all fine. the slide in the carb works Has super low hours, and sat for a couple of years before somebody else cleaned out the carb. Pulled the pump and adjusted stroke using a ruler to measure (bit of a guess but close enough, i dont have a dial indicator/mag base). LC / YPVS & 500 Chat. In It seems like its stuck on start mode. I recently picked up a Yamaha pw50 2 stroke thinking it would be an easy fix for my kid. wildcard Discussion starter. Finally I am trying to replace the upper half of the throttle cable on my kids' 2004 PW50, and I need some help! Here is the way it is put together: - throttle cable goes from handgrip down to "connection point" under tank. it had no spark i gave it to my older sons buddy how works at a local motorcycle shop. I've had the carbs off twice. The bl w/ white wire running through the switch. 2 posts · Joined 2019 Add to quote; Only show this user #1 · Dec 14, 2019. i bought a pw50 for my son when i bought it. By ReedRulz, July 6, 2010 in PeeWee. Went to start her up this morning and she sputtered out. Won't free rev over 3,500. Might want to check that top end. Also, don't rule out valve adjustment if applicable. If the engine is not revving up and cuts out before you reach higher revs then you need to do the following checks: Fuel: Make sure it is fresh and correctly mixed (see 'Starting Issues'). I can get it started but seems like it runs on 3 cyls and then dies after about a A KTM 50SX has approx 12hp from a 50cc engine. Thread starter flip6; Start date Nov 24, 2009; Status Not open for further replies. 33 posts · Joined 2006 Add to quote; Only show this user #1 · Feb 19, 2007. Also for: Pw50n2c 2021, Pw50n2 2021. It starts and runs fine but when i turn the choke off it dies. I removed the air filter and sprayed a little carb cleaner into the carbs. Hi, I need some help with this old PW50 I'm trying to get running properly again. In most cases, you can fix this issue. The problem is that it won’t take any gas. It's not popping (out the pipe) or bogging down just doesn't rev up. This year I got it out and you can move the kicker by hand without it grabbing. It revs out to 12. hi all, new to this forum and hope you tech chaps can help, i have a vivaro 2003 1. com/themowermed Hey there guys, Bike ran fine but after it sat for a month, it does not want to idle unless the choke is on. I cleaned the filter sock on the pumo and voila - bounces off the rev limiter in View and Download Yamaha PW50 2021 owner's manual online. TPS and map are the same plug almost. Thread starter jimmies; Start date Mar 18, 2002 Check out the bit on starting it. Make sure the Been having power issues with my 05 pw50. All Activity; TT Picks; Podium; Search; More . de-cabonized the exhaust. Although the fuel pipes were 5/16" ID, the 180 degree banjos at the carbs, fitted by a PO turned out to be only 1/4" ID when measured. I asked him for some wire snippers. Put new plug again & noticed the plug wire was broke & cap would pull right off of wire. The PW won't start it is a 92, I just rebuilt the top end on it. With the choke off it justdies. Ran it on the premix I use for my KTM, disconnected the oil line at the carb. Pitstop; Browse. Hint: My daughters pw50 will only run with the choke on. Pressing the pedal won't rev (although you can work a rev out of it periodically) After it reaches operating temp it won't start again When you actually get a rev out of it, won't rev past 4k and its slow getting there Backfires and has internal popping when you can rev Car currently isn't throwing any codes Things Ive replaced: Cam Position It needs cleaned out. Seems to rev out in neutral but won't rev under load. Rough Idle/Stall/won't rev up Contribution for cyls. It takes about 20-30 kicks to start , then I may change the plug and it starts after a few kicks normally wont move my 200lbs on a flat driveway more than 5mph. Jump to Latest 8. Check oil injector. 2000 KX100 won't rev out. Any help is greatly appreciated! Save Share Reply Quote Like. The sliders, diaphram are good, all passages are clean and have been blown out. If you want to go with the Black Dragon Ignition kit that will solve you problem and you wont have to deal with that again. You got the engine idling, but when you try to power it up the machine dies out. If it does rev sometimes but it just dies after about 5 seconds. I have adjusted the idle all the way up, put a new spark plug in it, bench set the carb. 6/22/2009. I've disconnected the SRS switch and the bike will still start, but not rev. But I just got my son a 2012 pw50, the problem I'm having is when he stops on a slight uphill it won't go again It sounds like it should go but won't So I end up pushing it to get it going. Battery is new and charged. When I hit the throttle it starts to bog down and eventually will stall if I leave it at full throttle. The bike has compression and is getting fuel, but I am not sure the spark is hot enough. Lucas Hansen. Wanted 50, 80& 125cc Bikes or parts . As soon as you open the throttle, the rev limiter kicks in and the engine starts popping. May be so worn out, that it won't start/make any power. Run: runs "normal" Off: shuts the bike off. he put a spark lug boot and a spark plug in it and it ran fine for one day. So replace the Needle valve in the carb and it'll stop otherwise what happens is it stays open just ever so slightly and fuel then pushes out the overflow on the bottom. Watching Snap on scanner show retard kicking in at the 3,500. I had to pull the carb apart and clean it. Bike won't rev past 6-8k during wot. From idle I can smoothly rev it up and it acts like it runs out of gas by about 4000 or I can blip the throttle and hold it and it may or may not make it to about 4500. May 16, 2005 Help Us Out When your idle speed increases or smooths out, you found your leak. Cr250r won’t rev out Facebook; Twitter; Youtube; Instagram; Pinterest; Newsletter; Cr250r won’t rev out. I'm not sure but I don't remember the start/run position having any impact on it. 04 Matrix auto btw. I suspect think this is related to the float 2007 PW50 wont idle with choke off. PW50 Technical Questions it would run with choke half on, but had eratic but didn't rev down like it should. Jump to Latest 4. Classifieds. To check this you can use a can of carb cleaner and spray a little at the connections between the carb and cylinder and see if the rpm increase even more. I can see the slide/needle in the carb (airbox off) lifting up but engine won't rev. changing clutch and removing tranny don't cause this problem you might have discconected/unplug some wires and plug it back incorrectly. If you can't find a leak that way, inject a little propane directly into the carb opening. My wife bought her son a pw50 brand new back in 2012, I don’t not know how it has been maintained because we’ve only been married 4 years and he outgrew it a little before we got married. 1865. 2 engine won’t Rev beyond 1500 remand throws out white smokeafter a while it will gradually up the rpm but yiu can feel car start to vibrate when the rpm goes up. The forks Whats the deal with removing the start switch on these and the rev limiter within the switch system. Advice for 1st Time Kids Involved in Motocross Racing. 9 posts · Joined 2009 Add to quote; Only show this user #1 · Jan 6, 2009. 80LC & 125LC chat. Bought the bike about 2. my pw50 was running OK till tte other day now it starts but wont rev out, iv changed the throttle cable and cleaned the carb n jets out but still no change any advise would be helpfull. It seems the oil Well today i rode it hard for the first time and it wouldn't rev past 8k free reving or under a load. Then it just seemed like it was running out of fuel. Im a total 2 stroke noob , but so far ive figured out that it : IS getting spark has decent compression at spark plug hole exhaust doesn't seem to be clogged Pw50 starts but no power it wont rev. remove pilot and main jets and cleaned,air/idle screw 1 1/2 out, Removed all gas replaced with fresh wont move my 200lbs on a flat driveway more than 5mph. Yamaha 2 Stroke; Activity. He got one good run out of it and then it had trouble revving. Clean oil reservoir and fill with fresh Yamalube. Prior to my purchase the previous owner, a friend, said he cleaned the carbs. i have a 2000 500 scrambler and it runs great but it wont rev out like it should rins great up to about half and it just Took it out and it will rev up to 4200 then bogs out. We bought it used and it was tired. Liberal application of car cleaner is a good idea, but be cautious about letting rubber parts soak in carb cleaner. Sounds like it's being held back like a rev-limiter. Another problem on the PW is sometimes the crank seal behind the ignition goes bad, and won't allow good compression to build for proper running. kspaalioazxlmgwgcrlgsjwyvbrmceegizmwnnuybjvrqxnnzgqacckn