cr power loss

[CRrider20]

i have a problem with my cr i lost all my power n wont start up any more this happened on the trail so i ripped every thing out the carb n reeds cleaned them n checked them still having problems next im doin my top end does any one know what the problem can be my friend says it may be the rings cause there is no compression ?? any ideas?

 

[bikepilot]

If there is no compression, you definately need a top end. I would pull it apart, and inspect and mic all parts and replace everthing that is not withing spec. You will need a factory service manual, available on egay and your local honda dealer. While you are at it, set the float level, clean the air filter and fuel filter (in the tank) and install a new plug. Make sure there are no air leakes in the intake track that would allow dirty air into your engine. This is probably what killed it in the first place. Normally, a top end will not wear out suddenly, rather it will gradually loose compression. Also, make sure the exhaust valve is clean and working properly.

good luck

 

[QuentinCR250]

HI, one other thing worth checking out is an inspection through the exhaust outlet, on my CR the power valve clipped the piston ring breaking it and causing similar results to what you have experinced. Pull the pipe off and shine a decent touch in there to check the piston and rings you might see the problem straight away.... good luck