Well ive got a new project pretty well complete, ive got an 84 200m engine stock bore AND IT DONT BURN OIL in a 87' quadsport frame.
It runs so well, spark plug is tan but after only minutes of riding the whole header turns glowing red ( header is a crf230f).
Unsure what would do this, is it out of time on the pulse rotor or on the cam itself?? Exhaust is free flowing, no obstructions, clean air filter...