Quote:
Originally Posted by Zeke
Good job. I wouldn't have thought that a key shift could alter the engine timing that much.
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It does. The smaller an engine, the more persnickety about stuff like mixture and timing. In these instances, in which the blade is abruptly stopped, it is common for that soft flywheel key to shear or become damaged. ANY damage will require repair. It is surprising this engine started at all with a damaged key.