06 yz450f backfire?

has anybody had problems with the 06 yz450f backfire? this has been going on since new. I had one of the local shops try to tune it with no luck.any advise would be helpfull.

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