400ex99
12-14-2002, 03:33 PM
i installed the 416 kit and the performance didnt seem to increase much, any jetting suggesting etc....?
this is what i had before the kit: wb e series, airl box lid off w/kn filter. stock pilot jet, 160 main jet, it ran great like this, i then installed a je piston 10.8:1, hotcam II, removed choke, installed a 42 pilot jet, 170 main jet. lowered clip on notch due to lightly backfiring, but after breaking in, the power didnt seem to increase like i hear on ya's 416. the backfiring quit and is easy to start. just not much differance in acceleration and speed, my valves are set at stock (per terry marcum). i then lowered the main jet back to 160, pug seems to show good color. still no change. my timing is right and im at sea level. I hear maybe the valve setting could be at .006 & .008, maybe this will help? any suggestings is appreciated.... running 15 fr. sprocket with 20 in rear tires.:confused:
this is what i had before the kit: wb e series, airl box lid off w/kn filter. stock pilot jet, 160 main jet, it ran great like this, i then installed a je piston 10.8:1, hotcam II, removed choke, installed a 42 pilot jet, 170 main jet. lowered clip on notch due to lightly backfiring, but after breaking in, the power didnt seem to increase like i hear on ya's 416. the backfiring quit and is easy to start. just not much differance in acceleration and speed, my valves are set at stock (per terry marcum). i then lowered the main jet back to 160, pug seems to show good color. still no change. my timing is right and im at sea level. I hear maybe the valve setting could be at .006 & .008, maybe this will help? any suggestings is appreciated.... running 15 fr. sprocket with 20 in rear tires.:confused: