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147 Posts
Hi guys, i have an 03 raptor 660, with big bore kit, 102 JE piston, 11:1, Stage II Cam, Ferrera Racing Valve-1mm over size, With Heavy Duty Vavle springs, Port & Polished head. I would like to know what jetting i should be running, i live in Miami, FL, like sea level. Im currently running 180&185 on my mains, n 30 on both my pilots. I have my A/F screw at 2 1/2 turns out. And i Have dyno jet needles on 4th (left) & 5th (right)clip, im also running open lid. I punch my bike n it spudders. i think i have right jets just need to mess with my needles. Please help me, Also should i put my stock needles back on or stay with the dyno jet kit on, where should i have my needles, and is my jetting fine for my location, Thanks....