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Old 06-25-2014, 01:29 PM   #1
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Kohler propane generator won't start

This is a Kohler Confidant 7, 6300watt liquid propane genset. Long story short, last weekend on Saturday I went to show the rv to someone (in the process of selling it), and on the way home, while the generator was running and ac's were going, the thing stopped. I was pulling onto my street so I didn't bother with it, figured, I had to stop it in another hundred yards anyway.

Well, went to prep it to show to someone later today, and the thing won't start anymore. It cranks but it won't start. Pulled the spark plug and grounded it, there is spark. Went and bought a new spark plug from Autozone, same deal. I had just filled up with propane 2 weekends ago, 100 bucks to fill the tank... is it possible I got "bad" propane - or more air than propane or something? I thought propane was cleaner than gas and didn't go stale, so less chance of bad propane? It cranks and cranks, but doesn't start... if I crank it with the spark plug out, should i be able to smell propane coming into the cylinder or is there not enough to actually have a smell?

Being that it is propane, can I spray starting fluid down the intake tube? I haven't tried taking the thing out to get to the carb and whatnot, so I don't think I can get that close...

Any ideas on how to troubleshoot this thing? It's bolted to the rv - not on a fancy slide or anything - so should I even attempt to take this thing out to look at without a cherry picker? I imagine it weighs a ton...

Thanks in advance,

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Old 06-25-2014, 08:48 PM   #2
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Did you check the oil ? Won't run if oil is low.

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Old 06-25-2014, 10:02 PM   #3
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Yep, was one of the first things, it was on the low side of the hash marks, so I've added about 1/3 quart. It's in the upper range of the hash marks now. I've got confirmation that it is safe to use starting fluid on it, tried it and it does start, but obviously doesn't stay running for long. So I'm guessing either bad carb, vaporizer, or bad propane... or some kinda fuel related issue anyway.

The oil switch, i imagine it's a switch that won't let it run if low, but will let it run when you add oil... right? Or do I have to manually reset something if indeed it thought it was too low?

Last but not least, any ideas on how to take the thing out without a cherry picker, so that I can at least look at the various components?

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Old 06-26-2014, 01:18 PM   #4
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It could also be the propane regulator that is attached to the generator. No oil reset that I know of. I've ran mine low on oil in the past and it would only run while holding down the start switch. Added oil and all was good. I have an Emerald III 6.3 propane generator and it is on a tray which swings down from the bottom of the coach.
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Old 06-27-2014, 08:23 PM   #5
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generator, propane

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