I’ve done a search but can’t find what I’m looking for. I have a 2001 WR426 with a YZ426 exhaust, YZ timed, air box lid removed, YZ throttle stop, and grey wire unplugged. I installed the JD kit as directed but can’t seem to get the bike to rev out like I think it should. I started with the 170 main jet and then went down to a 168 but it didn’t seem to help it at all on the top end but the midrange seems effected when I changed down to the 168. I ride around 1500 feet above sea level in east TN. Should I go even smaller with the main jet?!?!