JP400ex
01-24-2004, 06:53 PM
Im located right on the ohio/michigan line and its pretty cold here. I have a 416ex w/ 10:1 weisco piston, WebCam, race ported, UNI air filter w/ box cover off, and FMF titanium 4 Pipe and silencer. Im running the fmf with the silent core and spark arrestor. The guy i got it from had a 200 kehin main jet in it and the stock pilot and it was hesitating real bad when i would nail the throttle. So i put it down to a 185 and it still does it a little but not much. When i drop it down to a 175 it pops a whole bunch when i hit the throttle and let off, kind of like a bunch of backfires. So i am assuming the 175 is to lean (i know everybody says to only go with 165 or so)
I just cant seem to get this thing dialed in right, I want to be able to pop the clutch and nail the gas and have it take off with out sounding like its hesitating but everytime i lower the jet size beyond the 185 it pops to much.
I just cant seem to get this thing dialed in right, I want to be able to pop the clutch and nail the gas and have it take off with out sounding like its hesitating but everytime i lower the jet size beyond the 185 it pops to much.