Sputter at high RPMs
 

My bike is sputtering at higher RPMs (7,000 or so). I stored my bike with the gas tank full over the winter (a long one, Nov - May) and I think I gummed up the carburetor. So I took the air box off and sprayed the carburetor directly with carburetor cleaner. After the engine went back to idling normally (it bogged down from the carburetor cleaner) I throttled it back up and it was still sputtering at the same spot. Gummed fuel lines maybe? I'm curious what you all think. Any help is much appreciated.


~Josh

Re: Sputter at high RPMs
 

Carp in main jet or a sticky needle

Re: Sputter at high RPMs
 

Thank you for the help. Do you think running a tank of carburetor cleaner through the system will give it a good chance of cleaning up the gunk/unsticking the jet?

Re: Sputter at high RPMs
 

Assume its a carb model?
Have you checked the choke plungers and cables?They stick and can cause rough running.

Re: Sputter at high RPMs
 

That seems to affect low rather than high rpm, but it's worth a go.

Carb cleaner additives and so on I've not got any experience of. Worth a go perhaps.