Jetting question

[Blaster boss]

what would I have to do with my jetting if I got an fmf header and silencer I know that I would have to change my main jet but would I have to mess with my needle or pilot jet at all? Thanks

 

[Blaaster]

There is usually no need to change the pilot jet or change the needle settings.

You will have to set the idle speed as per specs.

List all your mods like air filter, airbox lid. And oil ratio and someone will chime in with a ballpark figure to start the plug chop at.