2012 WR450F Idle Adjustment

Hey guys,


Does anyone know exactly what the idle adjuster does on a 2012 WR450F, does it increase fuel?

I'm talking about the cold start knob (where a choke would usually be) that doubles as an idle adjuster from what I read in the manual. 


I'm wanting to know as currently my bike is running quite lean at idle due to an aftermarket exhaust. Whenever I let off the throttle, I hear constant popping until i turn the throttle on again. And the GYTR tuner is unable to change the fueling below 1/8 throttle.


So does anyone know if that adjustment would increase fuel at idle to solve my issue?





Spin that idle knob till you hear a difference

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