Jump to content
Sign in to follow this  

CRF 50 high rev sputter

Recommended Posts

Hello,

My son's '05 CRF 50 just randomly started sputtering at high RPM's last time we rode. The bike has always ran great and I'm just a little perplexed. Thought is was an intake/fuel issue, but after cleaning & rebuiding the carb, air filter service, fresh gas etc.... the problem persists. Soemone suggested I check the coil, which I did by kicking the bike over with the spark plug arching and it looked blue and fine. Spark plug residue also looks good with a tan color. It runs great at low and mid, but just starts cutting out when he really gets on the throttle. Problem happens in N & under load.

 

Any help, thoughts or insight is very much appreciated.

 

Thanks,

 

Mike

Santa Cruz, CA

Share this post


Link to post
Share on other sites

Issue resolved. There was a nik in the green wire going to the coil with a tiny bit of bare wire exposed.

Spark appeared fine when kicking bike over with plug disconnected, but must've been robbed of current when it mattered more at high rev. A little electrical tape and no more sputtering. Going to do it right tomorrow with some heat shrink. 

 

Hope this helps someone else down the road!

Edited by mevirga

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Reply with:

Sign in to follow this  

×
×
  • Create New...