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I have a craftsman 12.5hp riding mower. went to mow and a very loud noise came from the mower. sounded like i ran over a huge piece of metal. i had shut everything down and it would not start up. there was nothing caught in the mower deck. then the starter fried and i bought a new one. when that turned over, the same noise came from the mower. i had stopped to ensure i didnt fry another starter. i dont know what it could be.

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  • w1234will May 19, 2009

    does not have a pull start but i am able to turn the flywheel. did not seize up as far as i know.

  • w1234will May 19, 2009

    the flywheel does move freely. the blades do move, the problem starts before i engage the blades ( i have to engage the blades manually). when the starter contacts the flywheel there is a huge clanking noise and it starts to shut down. could the cam shaft or something like that be out of whack?

  • LeeatCSE May 11, 2010

    You say it burned up a starter. Is the engine turning over at all? Is this a mower with an electric PTO to engage blades?

  • LeeatCSE May 11, 2010

    Will the engine turn by hand?

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Since the flywheel rotates freely, are there any noises when rotating it by hand? If not, problem is likely not internal. I would suspect the starter or flywheel. Take the engine cover off and inspect the flywheel teeth. Mower can also be cranked with the cover off to see if all is working properly.

Posted on May 19, 2009

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I would check to see if you can rotate the fly wheel by hand. Also check to see if the blade(s) move easily (with the mower off and key out get under tractor and try to rotate the blade if it moves freely then great if not then you have other issues). Report back so that we can go from there.
Mike

Posted on May 19, 2009

  • Mike McDowell May 20, 2009

    Check the starter teeth to see if they are grinding with the teeth on the flywheel. My guess is that your starter is just a little off and the gears are meshing.

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