Jump to content

crf 450 starting issue again !!

Recommended Posts

hi guys so i rebuild my 07 crf 450 new crank, piston, plug every thing had valves re shimmed bike started great 1st or second kick went out on it was all good.

took it out 2 weeks later was ok when first started it but once it warmed up was a rite pain to start it went from one or to kicks to 10 to 15 any ideas cheers 

Share this post


Link to post
Share on other sites

Go and check the valve clearances, from your explanation of the rebuild it seems that no valve job or new valves happened, is this so?

Share this post


Link to post
Share on other sites
17 minutes ago, wingman111 said:

Go and check the valve clearances, from your explanation of the rebuild it seems that no valve job or new valves happened, is this so?

didnt have new valves just shims i was thinking maybe it was  jetting thanks for the reply 

valve Clarence are in spec

Share this post


Link to post
Share on other sites

If you haven't checked them since it won't start check them again, they can change quickly when worn out.

  • Like 2

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:


×