Originally Posted by blaine.hale
Just asked Bill with Rocky Point about a jetting for a 34mm VM on an r90:
Slide: #2.5, #3 may be OK
Needle jet: 159 P-0
Air jet: 2.0
I told him I'm running hoske pipes with a little more flow than stock..so he may have adapted those jettings for that factor.
I may go back up on main jet size. Raising the needle actually helped.