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jetting 450r carb for 400ex

6.5K views 3 replies 3 participants last post by  racer4713  
#1 ·
I have a EX bored to 416, stage 2 hot cam, timing advanced and rev limiter. Im going to get a new slip on pipe for it. What I want to know is what size jet should i use in my stock 05 450r carb on the EX? Im at sea level.