Wheelhorse Bronco 1972 14hp Kohler no spark

[johnclinster 0]

I have no spark, and am new to this, i tested the coil and there is no amperage, I also did the spark plug block test..., no spark. But cranks perfectly, and lights work great, Any Ideas what could be the the official problem?

[WH nut 553]

For test purpose, run a jumper wire from Battery + to the + side of the coil and see if you have spark. If you do, back track to the ign. switch. Must have 12 volt to the + side of the coil.

[johnclinster 0]

Hey whnut, I appreciate you getting back to me, I did the test that you said and I am not getting spark that way either, just to let you know I have a brand new coil, spark plug, spark plug wire, and battery hooked up

[gwest_ca-(File Mod) 11,276]

Remove the spark plug so you can easily turn the motor over by hand.

Turn the ignition key to RUN

Check for voltage at the (+) coil terminal. If yes

Check the voltage at the (-) coil terminal as you rotate the engine slowly by hand for at least 2 complete revolutions. When the ignition points are closed there should be no voltage. When the points are open there should be voltage. This happens once for every 2 revolutions of the crankshaft.

 

If the voltage does not go to 0 volts the point contacts need to be cleaned with a file or crocus cloth. There will be invisible oxidation on them preventing electrical contact. Point gap should be .018" to .020" when they are open at their widest point.

 

The condenser connects to the (-) coil terminal along with the points.

Power from the ignition switch goes to (+) coil terminal.

 

Let us know what you find.

 

Garry

[johnclinster 0]

I am convinced with the test you mentioned that the points need to be cleaned, where Exactly are they located, are they inside of the engine too? I found the casing on the front of the engine and some metal mechanism inside, I am having a hard time finding any pictures, I appreciate your help

[johnclinster 0]

Hey Garry, just wanted to let you know that the problem was the points gap, and they needed cleaned, I also cleaned up the magneto and the flywheel, it runs perfectly, thank you all for your time and help

[gwest_ca-(File Mod) 11,276]

Glad to hear you have it fixed. If the battery powers the ignition coil this is called a battery style ignition so you won't have a magneto. Magneto ignitions are self-powered and any battery power to them burns up the magneto coil. Very important to identify the type of ignition used in case you have other gasoline powered equipment.

 

Garry