what does everyone run in the 300 for carb size (stock or aftermarket/400ex) and jetting. responses very appriciated. need to get my quad running right for this weekend.
2muchquad
05-31-2007, 10:08 PM
I think a 125 main is stock in the 300ex,if you go with a 400ex carb,try a 144 or 146 for starters if you have a pipe at least.