wr450 jetting info wanted

hi there 03 wr450 just put full Akrapovic system on front pipe seams hot as f@#k and if you blip throttle hard from tick over it bogs and stops engine i live in uk so any advice on main jet and such would help ive looked through all the posts and read all the stuff but all i can work out is I'm too lean and need to swap main jet any simple help please


What elevation are you at?

hi there not sure but live in the middle of uk leicestershire if this helps :D

you are running way to lean man!!

Way way lean.

I would go 48 pilot, richer on the needle.

Your main might be right but only you can tell.

ive put 168 main in and 3 turns out on pilot for now seems ok but booked dyno for next week thanks

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