HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
adroncoyote

air mixture screw

2 posts in this topic

I have a '98 YZ 400 w/ white bros. exhaust. Not sure if its been re-jetted. What's a good starting point on the air mixture screw? How many turns out?

Share this post


Link to post
Share on other sites

It's a fuel mixture screw, so it works backward of a pilot air screw; out is richer, in is leaner. Start at 2 turns and work with it.

Share this post


Link to post
Share on other sites

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
Sign in to follow this  
Followers 0