new pipe!!

[jaredZ400rider]

hey i was just wondering if i would need to rejet if i got a yoshi RS-3 pipe and if so what size jetting for a z400?

[motomanmike]

I'm not sure about the size jets, but you will definetly have to rejet, i had to up mine by five just taking the air box lid off so i know you will with a full pipe, the pipe should come with some literature to get you towards a baseline and the fine tuning will come from your needle position