What jetting should I use on my DR-z 400s (2007)

OK so I bought the MRD full exhaust system and opened up the holes in my air box so the fuel air mixture is all messed up. does anyone know what main jet and a pilot jet I should switch to for the best performance on my bike? Thank you.

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