Yamaha Raptor 350 & Warrior Forum

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  1. X

    Head work (valves, springs, porting, cam)

    Winter break is just around the corner!!! I plan on rebuilding the head on my Warrior while Im out of school. I want to install performance springs, valves, cam and port the head and maybe even shave the bottom for more compression (milling I think its called?). Does anybody know the best...