> I tried to clean the carbonizing myself this morning, but it still > didn't want to start. I brought it into a repair shop and they said > the piston was damaged and that's why I'm getting no compression. Can > that really happen just because of a rich fuel mixture or am I being > BS'd? Not because of a rich fuel mixture. It could be the pistonrings are worn out, or something got stuck between the piston and the cilinderwall. Compression loss in moby engines can also ocur because of a leaking decompressor. Or a broken sparkplug seal or cilinderhead seal (that goes for all engines ofcourse). Robbert
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