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Norm's 2 stroke repair center Having problems with your 2 stroke motorized bicycle engine? Just ask Norm, he loves to tinker and troubleshoot engines


NEW ENGINE PROBLEMS (starting and running)

Having problems with your 2 stroke motorized bicycle engine? Just ask Norm, he loves to tinker and troubleshoot engines


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  #1  
Old 05-26-2011, 06:30 AM
sutton sutton is offline
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Angry please delete

...........................

Last edited by sutton; 07-24-2011 at 01:40 AM.
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  #2  
Old 05-26-2011, 07:20 AM
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Default Re: NEW ENGINE PROBLEMS (starting and running)

Sounds like you have the slide 180 out, take the breather off and make sure the slide is closing all the way if not the slide is in wrong.
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Old 05-27-2011, 03:01 AM
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Default Re: NEW ENGINE PROBLEMS (starting and running)

Thanks greg. i had the cables adjusted to tight on the throttle grip and the top of the carby which had the slide up to high + i didnt have it in properly. i still have a problem with having the choke on and trying to accelerate and nothing happening and as soon as i pull the clutch in or slow down to stop it stalls. when the choke is off i can accelerate but it jerks the bike cause its cold and as soon as i pull the clutch in it dies aswell. is this normal
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Old 05-27-2011, 05:48 AM
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Default Re: NEW ENGINE PROBLEMS (starting and running)

which carb do you have? check the threads at carb and intake for tuning.
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Old 05-27-2011, 11:13 AM
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Default Re: NEW ENGINE PROBLEMS (starting and running)

Quote:
Originally Posted by Greg58 View Post
Sounds like you have the slide 180 out, take the breather off and make sure the slide is closing all the way if not the slide is in wrong.
The slide only fits one way.
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Old 05-27-2011, 12:41 PM
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Default Re: NEW ENGINE PROBLEMS (starting and running)

It may not on these carbs but it will on some m/c carbs, just was replying from what has happened to me in the past.
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Old 05-28-2011, 01:09 AM
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Default Re: NEW ENGINE PROBLEMS (starting and running)

probably should always be the first thing to ask...

what oil mix are you running?
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Old 05-28-2011, 02:02 AM
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Default Re: NEW ENGINE PROBLEMS (starting and running)

If it has a CNS carb make sure the enrichener is seating all the way down. Make sure you don't have any intake leaks.
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Old 05-28-2011, 08:24 PM
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Default Re: NEW ENGINE PROBLEMS (starting and running)

i changed the spark plug and i tried starting the bike with choke only partially closed also i wound the idle speed adjustment all the way in then back out 1 turn just to get me some where close to where it is and she runs fine, its a chinese carby and engine ( never again will i buy ) now my clutch slipping. i worked on this bike 10 times more then ive ridden it. thanks everyone for the help,
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Old 05-28-2011, 11:16 PM
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Default Re: NEW ENGINE PROBLEMS (starting and running)

Quote:
Originally Posted by sutton View Post
i changed the spark plug and i tried starting the bike with choke only partially closed also i wound the idle speed adjustment all the way in then back out 1 turn just to get me some where close to where it is and she runs fine, its a chinese carby and engine ( never again will i buy ) now my clutch slipping. i worked on this bike 10 times more then ive ridden it. thanks everyone for the help,
it's a learning experience for everyone.

get a picture of your carb so we can see if it's the CNS or the NT/SPEED carb. CNS is pron to so many problems it's not even funny.
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