04 kfx

[bigorangehmf]

I run a 170 hmf jet, w/full exhaust air lid off. I am at 12 feet above sea level. It takes me for ever to get to top end. I think jetting is my problem. Any advise would help thanks in advance.

[YFZ450Ridr]

i have a 175 main with a white bros SLIP ON pipe, new filter and lid off. you might need to bump up your main jet.

if your having trouble getting up to top speed, drop a tooth on the front sproket, youll lose some top speed but gain alot of acceleration and some torque. youll get to top end faster.