2 stroke bicycle

[metalmonster90]

My two stroke bicycle runs perfect when i am riding but sometimes when i am slowing down i let off the throttle and pull the clutch the motor revs very high any thoughts on the cause? I do not have any problems starting it even when its cold.

 

[Wrench]

You got an airleak maybe the intake manifold or it's a crank seal

 

[metalmonster90]

You got an airleak maybe the intake manifold or it's a crank seal

Its been one thing after another with this engine its Chinese made i just replaced the magneto coil and when i first got it i had to replace the piston

 

[Joast]

My two stroke bicycle runs perfect when i am riding but sometimes when i am slowing down i let off the throttle and pull the clutch the motor revs very high any thoughts on the cause? I do not have any problems starting it even when its cold.

Sometimes one of mine does this-- but only occasionally. It almost seems like the throttle is stuck wide open when it is not.
Mine has a clone exhaust pipe and I have wondered it the engine was sucking unburnt gas back in but that was just a thought.
Hope you get an answer.

 

[metalmonster90]

Sometimes one of mine does this-- but only occasionally. It almost seems like the throttle is stuck wide open when it is not.
Mine has a clone exhaust pipe and I have wondered it the engine was sucking unburnt gas back in but that was just a thought.
Hope you get an answer.

Yeah mine only does it on occasion also i was thinking maybe because the engine was not warm enough before i started riding but i dont think it would cause that

 

[DAMIEN1307]

Its been one thing after another with this engine its Chinese made i just replaced the magneto coil and when i first got it i had to replace the piston

Welcome to the Chinesium insanity right along with the rest of us...lol.

 

[DAMIEN1307]

What motor do you have???...And do you have any pics to post of the bike and engine all around???...Sometimes we can see something obvious just with the pics in order to help.

 

[metalmonster90]

I will take some photos of my motor and post them in a minute

 

[metalmonster90]

Here are some photos of the motor

 

[DAMIEN1307]

Did your carburetor come with an O ring to insert inside where the intake slides into the carburetor???