flaccidracing
08-12-2006, 05:30 PM
i have a 03 400ex. i ride at lower elavation. the bike has a full big gun exhaust and rev box, no lid on air box. the main jet was a 170. i just installed a hot cams stage 1 cam and now it runs too lean, what size jet should i start with? i'm a rookie so i dont know shi#!