The sled is a 1999 skidoo mxz 600. This post is on my friends behalf.
Long story short he's experiencing bogging at low power when getting going. Not much problem once he gets cruising though. The mag side cylinder is misfiring, the plugs been coming out wet. We have tried switching the spark plug wires to opposing cylinders to make sure the problem didn't follow, misfire remained in the mag side. Far as we can tell the crankshaft seals are still good. A compression test revealed 90psi of pressure in both cylinders.
At This point I'm thinking it may be time to rebuild the top end, but were wondering if there's anything else we should look at first. Thanks guys.
Long story short he's experiencing bogging at low power when getting going. Not much problem once he gets cruising though. The mag side cylinder is misfiring, the plugs been coming out wet. We have tried switching the spark plug wires to opposing cylinders to make sure the problem didn't follow, misfire remained in the mag side. Far as we can tell the crankshaft seals are still good. A compression test revealed 90psi of pressure in both cylinders.
At This point I'm thinking it may be time to rebuild the top end, but were wondering if there's anything else we should look at first. Thanks guys.
Time for a rebuild?
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