Sign in to follow this  
Followers 0
Guest Guest

when to rebuild

2 posts in this topic

I have over 4000 miles on my 98 WR and only trip inside the motor was a valve adjustment at 800 miles. The exhaust valves tightened up to the lower end of tolerance.

I have heard that some YZ400's that have raced hard have problems with the small end bearing on the connecting rod.

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

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0