2002 Kohler 25hp Command Vertical Shaft Issues

HollyGlen

Forum Newbie
Thanks for you time in advance.
A family member has a older Woods Commerical Zero Turn from 2002, one original owner. I mention the mower because the model and serial number is missing from the engine cover so I had to use the serial number on the Woods Mow n Machine M2560 to back in to the limited engine info I have.
Symptoms: Will run fairly well for about 30 minutes of cutting, power will drop quickly and mower will cut off. After 2 minutes it will crank and run about 15 to 20 minutes and after that about 15 to 10 minutes.
What I have Done: Replaced, oil, plugs, verified fuel flow, removed the carburetor fuel shut off plunger with no improvement. I also tried a SAM delete replacement that did not go well and resulted in poor timing and backfiring which I would think is a result of the delete kit not being compatible with the timing of the original flywheel. Fuel tank vents appear to be working well.
What I know about the current (all original to mower) SAM/coil/flywheel : Sam is a separate module about the size of a 1/2" stack of business cards mounted vertically with brown and yellow wires running to the coils, and has a red power feed from the mower splitting to the carb and a green ground wire. Kohler original 25-790-12 delete kit fit up well in accordance with instruction but engine was slightly weak and backfired after about 5 minutes as mentioned.
I have found a decent amount of contradicting info that all does appear to agree that it is unfortunate I do not have an exact model/serial number for the engine and that the Kohler evolution of the ignition/flywheel combinations has made this more complicated than you would think it should be.
I have found some hits on trying the 24-584-201(or 45) S coils and make my own delete wiring harness but I saw some hits on this dropping power and having subtle miss and I also see that some have had luck with die grinding out the coil slots to allow for lateral adjustment but do to the fact that it is not my mower I am hesitant to take this approach,
Questions: 1) Any insight would be greatly appreciate. 2) Is 24-755-308-S kit with flywheel my be repair option and is there anything I need to verify prior to ordering? 3)Are there any less expensive reliable options? 4) Am i correct that this old a ?SAM and coil setup is likely the culprit and needs to be swapped out?
Thanks.
 
The SAM and the modules should have a part number on them. That may assist is looking up parts and/or bulletins relative to your engine.
 
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