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Thread: Kohler engine stops running

  1. #1
    Dave Doucette's Avatar
    Dave Doucette is offline Registered Rider Dave Doucette is on a distinguished road
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    Kohler engine stops running

    I have a Kohler magnum in my 1991 argo. It seems like every time it warms up (about 20 minutes of driving) it wants to die, I have to give it full choke and it will run for a while but the it quits and I have to wait for a few minutes and then it will go for a few 1000 feet. I put on a new fuel pump because it looked like it was getting air in the line but it is still doing the same thing. It also did it in the cold weather. So it is not over heating. Any ideas out there?

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    verner is offline Registered Rider verner is on a distinguished road
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    Overheating was my first thought. Fuel filter not allowing enough flow? A kink or sharp bend in the fuel line? Dirt in the bottom of the tank?
    Engine going lean after running for a while seems like a fuel delivery problem. Maybe dirt in carburetor bowl?
    Flywheel fan not full of weeds/grass? If no air, it can still overheat when it's cold.
    Good Luck
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    plott hound's Avatar
    plott hound is offline Master Mudder plott hound is on a distinguished road
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    overheating will cause the gas to percolate in carb or gas lines.

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    wfo's Avatar
    wfo
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    check that gas cap.. try running it without it
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  5. #5
    6X6's Avatar
    6X6
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    All good Ideas above, also a stuck float (stuck just a tiny bit open) will cause it to lean down, but then will refill while sitting. A crack in the fuel line before the pump will cause it to suck air, but the wait to restart wouldn't make sense then. I'd agree with cap, dirty carb, plugged/kinked line, or stuck float as top suspects.
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    LarryW's Avatar
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    What a bunch of great ideas guys!!!
    I had an experience once kinda like what 6x6 was stating but it was junk in the carb just above the needle. It had a 90 degree bend of flow from in the carb to down the needle and clogged there. It would seep gas in the bowl but not enough to run. So after sitting it would fill up. Then run a bit just like you stated then quit. Just another thing to check.

  7. #7
    racerone3's Avatar
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    check your fuel line routing, if it's close to a heat source you might be boiling the fuel in the line before it ever gets to the carb. if it's close to a header or laying on the head of the engine try rerouting it.
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  8. #8
    Dave Doucette's Avatar
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    Thanks to all of you. I am golng to try all of them in the next couple of day.

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