How do you read the plugs on a 2 stroke? I have a recently rebuilt (pistons, rings, rebored cylinders) 94 Montego with a 640 engine. The mag side plug is dry and the pto side is wet. Which one is right? With a single carb how can they be different? Compression is still good (130 - 140 psi), but ski is bogging and won't take the throttle. Any ideas?