Question about Pit Bike 125cc 4 Stroke Dirt Bike

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My 125 4stroke pit bike cuts out when going to rev or pull away

My 125 4stroke cuts out when going to rev or pull away was out on it to day it backed fired then cut out it took few kicks to get started again when it dose start it cuts back out it has good spark and new carb new air filter could it be the piston/rings or any thing like that

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  • Expert
  • 78 Answers

Pull cover on magneto and check for loose pickup coil.

Posted on Jun 05, 2014

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Posted on Jan 02, 2017

yeagisyeag
  • 20 Answers

SOURCE: Atomik Pit Bike

After hunting around the web for a few, it sounds like the spring is from the timing chain tensioner. It looks like there is a button on the end of the cylinder, that end goes in first, then the spring. See if the spring is the same on both ends, the picture looks like it's smaller at one end and that end goes into the tensioner, not the bolt. I'll include a screen shot of the picture.
Good luck!11_26_2011_3_17_47_pm.jpg

Posted on Nov 26, 2011

  • 42 Answers

SOURCE: got spark compression and gas but bike wont start!

Check to see if the ruin burton is on, if so out could be the switch isn't altering the connection to go the plug.

Posted on Dec 18, 2012

bernardj1978
  • 15 Answers

SOURCE: ENGINE REVS

Check to see if ur throttle isn't getting stuck or has gunk/rust that might b preventing ur throttle to return to its original position also check the cable its self u might have a kink on the line wich may prevent retraction Also check ur handle and make sure its not sticking Their could b other problems but for now check ur throttle cable

Posted on Dec 23, 2013

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ENGINE REVS


Check to see if ur throttle isn't getting stuck or has gunk/rust that might b preventing ur throttle to return to its original position also check the cable its self u might have a kink on the line wich may prevent retraction Also check ur handle and make sure its not sticking Their could b other problems but for now check ur throttle cable

Dec 23, 2013 | Pit Bike 125cc 4 Stroke Dirt Bike

1 Answer

125cc pit pro, pit bike Kick start lever jammed


remove the cover that houses the kick starter and look for a failed return spring or some other reason that keeps the kick start dog engaged.

Jun 03, 2013 | Pit Bike 125cc 4 Stroke Dirt Bike

2 Answers

I have a 125 pit bike and it ticks over fine but when you rev it it backfires does any body no how to fix it.


You can check ur values but some bike do make a we ticking from the values and it will back fire when revved up because of the extra fuel once revved that hasn't brine burn as it revs back down to idle speed.

Jul 19, 2012 | Pit Bike 125cc 4 Stroke Dirt Bike

1 Answer

110 pit bike my pit bike starts but when i pull da


your spring might have broke on your throttle needle take apart have a look

Nov 11, 2009 | RTO Pit Bikes

3 Answers

I just got a 110 ssr pit bike. is the back brake


It should be below. Not to sound rude, but I think you could have figured this one out yourself. You sound like a smart guy.

Thanks for using FixYa.

Aug 12, 2009 | Pit SSR 110CC Pro Beginner Bike

4 Answers

I have a pit bike and it splutters alot when i ride it


my pit bike will not keep it revs for a long time so can some one help me it is my first pit bike

Jan 09, 2009 | Pit SSR 110CC Pro Beginner Bike

1 Answer

Cut out


did everything as usual letting the bike idle for 5 minutes while I got my gear on. Got to the end of the road stoped then as I opened the throtle to pull away it cuts out. Restart then as I get to the next junction does it again. Pull over a bit to give it some revs, all seems fine, nice idle etc, then does it again at the next junction as I try to pull away. After that no problems at all, went out for an hour or so didn't miss a beat, was out on it the day before to with no problems. Anyone else had any of this sort of weirdness on their 690?,check out the fluid in the clutch reservoir. I was loosing some oil from the slave cyl. and when there was a lack of oil exactly same thing was happening to me.,,,

Nov 10, 2008 | 1994 KTM Duke

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