Highest Hours?

[Curt Doles]

Curt, did you swap wires also??

Curt, did you swap wires also??

Hi Gary,
As Matt pointed out the wires are a component of the ignition module. I've replaced two of those
on earlier tractors. As I recall both wires come off a central module.

 

[MarcHeld]

I will say the two 1872's were running strong when I sold them. One was for a 2284 I'd been lusting after forever. I bought it with 500 or so hours about 10 years ago. It just turned 1000 this past season.
My primary mower became a SZ60 about three years ago. The 2284 pulls a lot of trailers and the Cyclone in the fall, does the fertilizing. That's an 1872 in my Avatar.

I think I may have an intermittent Ignition module. It doesn't idle great but is fine at full speed.
If I pull one plug wire it has little impact if I pull the other it stalls, swapped plugs same symptoms.
What else could that be?

Try testing the ohms across the primaries. Check the spec. Should be around 20,000

 

[Curt Doles]

Try testing the ohms across the primaries. Check the spec. Should be around 20,000

The Magnum and Command series uses an Ignition module. Not sure there is a primary to test. I could test plug to ground, either side. Here's the schematic.

http://www.kohlerengines.com/engines/onlinecatalog/pdf/sm_24_690_06.pdf

 

[MarcHeld]

The Magnum and Command series uses an Ignition module. Not sure there is a primary to test. I could test plug to ground, either side. Here's the schematic.

http://www.kohlerengines.com/engines/onlinecatalog/pdf/sm_24_690_06.pdf

Put the ohms meter across the spark plug wires to test the primaries

 

[Bret McFarland]

While Kohler and Briggs aren't cheap, ONAN takes it to up another tier. IF you can find the parts, the rebuild on a vintage B48G 20HP Onan is crazy expensive. Just price a set of points and you'll see what path you're headed to.

Most people just rebuild the P220 with the electronic ignition, there are still a few NOS shortblocks out there somewhere.