Jetting info needed

I need the jetting for a 2005 yz450f. Mainly the pilot. I am getting popping or back firing when I am off the throttle

where is your fuel screw set at?

did you adjust it yet?

I tried both 1-1/2 and 2-1/2 out

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