crf250r problem

[crf250r338]

i just had my cousin rebuild my 2006 crf250r put kibblewhite valve kit in it and je piston ran but didnt seem to have power as it should raced it sunday at malvern went to hit a jump hit the throttle nothing now it has a ton of compession and when it was running it didnt have alot any suggestions WONT RUN thought ethier off time or bent a valve?????????????????

 

[baxterj787]

Your description sounds like it was put back together out of time. It is easy to do on accident. I know from personal experience. They will be hard to start and have very little power when one tooth off.

Now: who knows. Tie to pull it back apart and check A) timing marks, B) decompressor assembly and C) cam chain. Might be a good idea to pull the head and check for bent or sticking valves.

 

[crf250r338]

thanks man