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Lack of Spark

John Deere LX172 Lawn Tractor does not have any spark. I've checked the safety switches from the seat and transmission as well as fuses. I also tried another plug. Battery is full charge. Starter runs. Fuel supply is good. No spark at all.

It was running, slowed down and died.

Ideas?

Thanks, Keith

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If all of your tests are correct, the thing remaining is the ignition coil. A bit of a pain to get at and expensive too. Parts diagram here. Before you buy a new coil, see if there might be just a broken spark wire or loose connection at the spark plug contact end.

Posted on Jul 17, 2010

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Posted on Jan 02, 2017

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