Jump to content
Sign in to follow this  

How does adding and removing a Promoto silencer change jetting?

Recommended Posts

I usually run my WR426 w/out the silencer. When I add the Promoto Billet silencer for certain rides I was wondering what changes I should make to my jetting. It doesn't really seem to effect much except the idle and just off idle. Do I need to richen up the pilot air screw?

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

Reply with:

Sign in to follow this