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Cub Cadet LT1050 lawn tractor won't turn over and start. Starter motor does turn, but flywheel doesn't turn very fast, and stalls each revolution at the top of the compression stroke. I can turn the flywheel past this point with my hand on the flywheel screen, although it is difficult. I first thought "low battery" but I jumped the tractor with a deep cycle marine battery and although i get very bright lights and good spark on the engine ground, the starter motor still won't turn the flywheel past the high compression spot of the rotation. I'm guessing the starter motor isn't generating enough torque, but I don't know how to test for that. It does turn when hooked directly to the jumper battery. I'm not brave enough to try to stall it with my hand. Any ideas on how to diagnose this?

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Three people i know plus myself have this same problem with this same model tractor. new starters and new batteries did not help any of us

Posted on Aug 15, 2010

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I would take the starter off and go to Autozone, or a small motor shop and have them test it.

Posted on Jun 10, 2010

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