Mag20 hp no spark

Jack Nunn · Sep 12, 2012

Bought a walk behind mower with 20 hp koler. Been parked for 5 years. Got everything going great but no spark what do I need to check and how. Never worked on electronic egnition before

joe csuti · Sep 12, 2012

Goto link below,service/repair manual for your eng avail as a free download,will tell you how to troubleshoot ign system in section 8 of manual.
manual

Brian G. NY · Sep 16, 2012

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.

Mag20 hp no spark

Jack Nunn

New User

joe csuti

Well-known Member

Brian G. NY

Well-known Member

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