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la400ex
12-10-2002, 05:36 PM
My neighbor has a 2002 400ex, the purple one in the pic, with a yoshimura full system on it. Mine is the yellow one. He bought them fenders from a guy for 20 bucks. He just put the pipe and needs to rejet. We are at sea level. Thats the only mod he has. I dont know much about jetting. What sizes should he try? Thanks, Anthony

AtvMxRider
12-10-2002, 05:44 PM
I would try a 155 main jet to start with.