Posted by Brian G. NY on September 16, 2012 at 07:05:03 from (18.104.22.168):
In Reply to: Mag20 hp no spark posted by Jack Nunn on September 12, 2012 at 16:14:53:
The ignition module (coil) may have gone bad; I had to replace the one in my M-18 recently. Not cheap!! BTW, a friend of mine bought a tractor with a bad coil. Turns out, the prior owner had hooked up the ignition switch wrong and "fried" the coil. The small wire from the coil is strictly for "grounding out" the ignition to kill the engine. No current is EVER to be applied to this wire!! The correct ignition switch for these tractors has one terminal that goes to ground in the off position. Make sure you positively identify that terminal before you attach your coil wire.
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