I want to replace my stock card what do you all recomend?I thought about a keihin pwk35 carb but dont know were to start with the jetting. thanks

 

That is typically considered to be a 2 stroke carb. The stock carb is hard to beat. A carb alone will not help perf much and in most cases will actually hurt perf. A carb should be the last mod chosen and should match all the other mods. I have tried the 38 mm carbs and find them a little too large for the mo to make good bottom end. A 36 mm carb like the mikuni flat slide 4 stroke carbs are a good choice for a modded motor. If you only mod with a pipe and better filter then the stock carb with the right jetting is usually going to give the best performance.