HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
idl

00 426 rebuild engine in frame or remove?

3 posts in this topic

bought a used 426 and finished putting in new clutch, checked valves and a little loose. Would like to check piston and ring. Is it best to remove from frame, or can a check and possible rebuild be done in frame?

Share this post


Link to post
Share on other sites

Keep your valves on the loose side of the spec. These DOHC motors tighten the valves up when they wear.

Yes, you can do a top-end in the frame. I've reringed mine many times without pulling the motor.

While you in there, don't forget to replace the timing chain......they are kind of the weak link in the YZF's. They strectch out and eat the crank gear, (the crank gear is made on to the crank half). I replace my timing chain once a year.

Good luck! :thumbsup:

Share this post


Link to post
Share on other sites

thanks- timing chain will replace also. Found manual on search, will check carb jets while i'm at it, seemed a bit lean with popping.

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