Racing Mower help

Old 04-29-09, 08:06 AM
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Racing Mower help

I have an older craftsman 15hp mower with the hydrostatic 6 speed shift on the right rear fender. I would like to make this a rather "tame" racing fun thing for the kids, but safe. Can anyone help? Do I change the rear pully to a smaller one? Remove govenor. Any help appreciated
Old 04-30-09, 06:12 AM
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I would repost this in the lawnmower section. Cheese has worked with racing lawnmowers and Craftsman brand equipment. He's a good source of information on the subject.
Old 04-30-09, 07:57 AM
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Many people have posted in this section about racing mowers so you should get some advice over the next several days, but it sounds like you have the right idea. A larger front/engine pulley and a smaller rear/driven pulley for speed. Removing the govenor will also allow faster speed but at the risk of increased engine wear and breaking the connecting rod. I would also get rid of the dash throttle control and install a "gas pedal" that is spring loaded to return to idle.

My big concern is a racing mower for your kids to play with. Keep in mind that a mower has a high center of gravity and can roll over rather easily. Not the safest of toys. A go cart would be much safer for kids to play with.
Old 04-30-09, 08:02 PM
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Is it a hydrostatic or a 6 speed? Provided it is in fact a 6 speed gear driven transaxle, changing pulleys will change your top speed. If it's a hydro, changing pulleys will result in a tractor that doesn't move.
Being that it's for the kids I'd stick to a mild re-gearing, adding a hand or foot throttle, and not bypassing the governor.... this way you won't worry about the engine coming apart.
Like Pilot Dane, for stability reasons I think a kart is the better choice for a kid's toy.

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