Hey guys can i get some jetting advise for a 2008 yz450f with a full Yoshi RS-2 exhaust. I ride at sea level to 4,000 feet here in Socal. Need to know what main jet, pilot jet, and needle you are using along with needle clip position. thanks
has anyone modified their oem tank cap so it doesn't leak so much? I have an 08 yz450f and it leaks a lot out the aftermarket breather check valve on the cap. I have put two check valve vents on it from cycle gear (trackside brand) and it still leaks.