Craftsman Lawn Tractor Won't Start


Old 04-23-08, 06:32 AM
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Join Date: Apr 2008
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Craftsman Lawn Tractor Won't Start

No Spark. This is a Kohler CV16S-42512 engine.Where do I start to find my problems. Alternatively, Is there a way to isolate the engine and bypass the tractor components to see if it is an engine vs tractor electrical problem (ie, hot wire the engine)?


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Old 04-23-08, 11:01 PM
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Disconnect the small kill wire from the coil and check for spark again. If no spark, the coil is bad. If there is spark, there is a problem with the kill circuit on the machine. If your engine has a speed advance module, there will be 2 wires on the coil. If so, disconnect the white one and leave the other to test the coil.

If you find the problem is with the machine and not the engine, then I suggest looking under the gas tank area for 3 little black cubes with wires. These are relays, and there is one which commonly causes a no spark condition. The color of the wires going to it help identify which one is the one related to the kill circuit, but I don't recall the colors for sure. I think one is white, and one is purple. I don't recall the others. Not all Kohler equipped craftsmans have these relays, but a good many of them do.
Old 04-24-08, 03:52 PM
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Craftsman Lawn Tractor Won't Start

Thanks for your Diligence!

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