Craftsman Koehler Command 16hp OHV no spark

Charlie11

Charlie11

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Craftsman 42” w/KoehlerCommand 16hp OHV model 917271030 stopped in mid mow. Not overheated, Turns over but has no spark. Replaced coil 2021.

attempted solution:
-Reset gap between coil and flywheel
-lightly sanded coil/flywheel magnet
-checked fuse, not blown

Still no spark.
 
doesn't that have an ignition module and a coil? Are there any kill switches on it - ignition or seat etc.?
 
There are two wires attached to the coil. Heavy one going to the spark plug and a smaller one, which is the kill wire.
 
Charlie11 said:
Craftsman 42” w/KoehlerCommand 16hp OHV model 917271030 stopped in mid mow. Not overheated, Turns over but has no spark. Replaced coil 2021.

attempted solution:
-Reset gap between coil and flywheel
-lightly sanded coil/flywheel magnet
-checked fuse, not blown

Still no spark.
Click to expand...
The wiring diagram for your mower is on page 31 of this manual
See the box labeled "ignition unit"? This represents your engine magneto. The body of it is grounded (represented by the right wire), while the kill wire goes off to the left. If that kill wire obtains a connection to chassis ground, it will kill spark. To test if you do in fact have a ground on that wire, I would get an automotive style test light and hook the clamp end to battery positive, so the light will illuminate if you find a ground.
 
According this mower came with a Kohler CV16-43514. This has a DSAI or SAM ignition system and not MDI system. Depends if it been converted or not so will have two control wires or three controls wires plus the HV lead for spark plug.

The Sam control box is no longer available which is why Kohler is now sending out the DSAI conversion kit when the control box fails.

This is the SAM ignition module.
1647514440904.png
And this is the DSAI ignition module conversion kit
1647514524596.png.
 
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