Hey guys I need help with a spark plug issue. I keep fouling out the plug. Here's my problem I can start the bike with choke on and giving it some throttle it stays on a bit. Turn the choke off with throttle it sputters to stay on. My mods list
Predator 212cc hemi
92 non ethanol gas
Mobil one racing 4t 10/40 oil with zinc added.
Bpr6es currently gapped at .040
Flame thrower 8.0 coil high performance
Slip stream billet flywheel 28 degree advance timing currently set gap at .050 with motor at TDC
18# valve springs set valve lash at 0 when installed.
Governor by pass.
Stage one go power sports kit with .038 main jet.
I'm not sure of I got my plug gap wrong or what but I do know with this current set up it gives the most horsepower I went my personal best speed of 62 mph today. Do I need to set my valve lash to .003 I'm tired of fouling my plug out. Or should l try a different plug gap? I've read .035 gap is the most common for high spark set ups but I set one plug to that and lost lots of power my motor is way happier at .050 I know these come stock with a plug gap of .016 and the margin is. 008. But I figured with this coil and flywheel set up I have .035 and up is better. Maybe I should try .039 on a new plug? I'm at a lost any advice will help. Or Maybe I'm just not tuning my carb correctly. I read to get the best plug reading is hold it at half or full throttle for 5 secs then kill the motor and check plug then adjust fuel mixture from there. Lately I been running real rich. I can't figure it out.
Predator 212cc hemi
92 non ethanol gas
Mobil one racing 4t 10/40 oil with zinc added.
Bpr6es currently gapped at .040
Flame thrower 8.0 coil high performance
Slip stream billet flywheel 28 degree advance timing currently set gap at .050 with motor at TDC
18# valve springs set valve lash at 0 when installed.
Governor by pass.
Stage one go power sports kit with .038 main jet.
I'm not sure of I got my plug gap wrong or what but I do know with this current set up it gives the most horsepower I went my personal best speed of 62 mph today. Do I need to set my valve lash to .003 I'm tired of fouling my plug out. Or should l try a different plug gap? I've read .035 gap is the most common for high spark set ups but I set one plug to that and lost lots of power my motor is way happier at .050 I know these come stock with a plug gap of .016 and the margin is. 008. But I figured with this coil and flywheel set up I have .035 and up is better. Maybe I should try .039 on a new plug? I'm at a lost any advice will help. Or Maybe I'm just not tuning my carb correctly. I read to get the best plug reading is hold it at half or full throttle for 5 secs then kill the motor and check plug then adjust fuel mixture from there. Lately I been running real rich. I can't figure it out.