stormin norman
New member
Have a 91 SRV and am installing a PSI single pipe. Stock main jet is 148. What size main do I need to install to be correct ? Pilot jet stay stock or go up also? Thanks
Fuel has change so much since those pipes were made, I dont think I would trust the jet spec today if it was given to me. I would go a few size up and watch the plug colors and piston wash.