mach9
TY 4 Stroke Master
Do you think it's possible to have a coil going bad without getting code 33, 34, 35?
yox185
TY 4 Stroke Master
I don't think a weak spark would set off a code. Check them for arcing to the head.
mach9
TY 4 Stroke Master
Think I would be able to see evidence of arcing to the head? I'm only having intermittent or rough running under high load within midrange rpm. Doubt I can replicate how it runs when up on a stand.
yox185
TY 4 Stroke Master
Yes you can usually see black marks around the coils where the spark is jumping.