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Help needed!

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RichardTx
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2020/03/29 20:28:52 (permalink)
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Help needed!

I've got a KT735-3078 that's spitting, sputtering, surging(from idle to open throttle) . Bogs down with any significant load. Obviously starving for fuel. Replaced fuel lines, filters, plugs, fuel pump, and a carb kit (if you want to call it a kit, consists of a needle and a few gaskets) just took it apart and cleaned for the 4th time...no change whatsoever. . Completely baffled. Is their some thing I'm missing here?
Edit: how much vacuum should the evac line be pulling? This isn't pulling at all. Didn't know if that's normal or not. And the fuel filter is practically empty while running
post edited by RichardTx - 2020/03/30 21:23:23
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    RichardTx
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    Re: Help needed! 2020/03/30 21:22:15 (permalink)
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    Ok what did I say wrong?
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    AVB
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    Re: Help needed! 2020/03/31 00:43:31 (permalink)
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    You could have a dead cylinder as V twins can run nearly normal when unload on one cylinder. Also as long the there some fuel present in the filter it is fine. It is quite common to appear nearly empty.
     
    The crankcase should be pulling 4 in of vacuum.
     
    Service Manual
    http://resources.kohler.com/power/kohler/enginesUS/pdf/32_690_03_EN.pdf
     
     
     
    Quote  #3
    RichardTx
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    Re: Help needed! 2020/04/08 22:08:54 (permalink)
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    Ok, it's been one of those..... checked the dead cylinder route, pulling a plug wire loose one at a time. Getting fire for sure, and almost dies. And let me tell ya... these little coils put out a lot more than I ever thought they would. .better than coffee for sure. . So finally I didn't know what else to try. Called a so called pro... just got it back today. .. runs worse. From what I can tell, instead of fixing the issue, he cranked up the governor to mask it... so....I'm a little
    Quote  #4
    RichardTx
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    Re: Help needed! 2020/04/08 22:11:27 (permalink)
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    PO'd at the moment. . Hard to enough on my ego that I had to let someone else look at it in the first place... not quiet sure how to proceed yet. .. any words of wisdom are appreciated. .
    Quote  #5
    AVB
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    Re: Help needed! 2020/04/09 02:45:14 (permalink)
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    Yes that 12-15 kv will wake you up. Normal electric fences run operate around 5-9 kv depending on the strength of the charger. A 5 kv one used to put our in the back of his doghouse quite regularly. Wouldn't have done it but just wanted to keep killing our chickens.
     
    And I agree he is a so called pro. Don't want to him that. Last Spring I had a customer with a Stihl hedger that was under warranty so I carry it into Stihl for repairs. The tech there couldn't find a bad spark plug. Three weeks in the shop and they saying they couldn't find anything wrong with it. Brought it back and run an operational test of it. I was to duplicate the customer complaint quite easily so I decide have a go at it. I found that plug was causing it to diesel. Replaced the spark plug and resolve the problem. So the Stihl trained tech at John Deere didn't know what he was doing.
    Quote  #6
    RichardTx
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    Re: Help needed! 2020/04/10 18:31:59 (permalink)
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    Ok folks rechecked everything from fuel cap to the carb inlet. Both cylinders getting fire. Cleaned and recleaned the carb x5 now. I've done the basic carb kit that only consisted of a needle and a few gaskets. I am about ready to order a new carb. Is there something I could be missing? And are the aftermarket carbs worth the chance? Gonna run it this evening with an entire can seafoam and see what happens. Yards out of control and I'm out of ideas. Coming to the realization that I might have to pay another man to mow my yard...tragic. ..lol
    post edited by RichardTx - 2020/04/10 18:34:52
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    RichardTx
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    Re: Help needed! 2020/05/05 17:48:29 (permalink)
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    After taking a break from it due to work, I'm back at it... avb looks like your train of thought was pretty close. Although I still haven't managed to get the high idle adjusted back where it should be, I noticed an arc jumping off the plug wire.. looks like about every other time it fires.. is this something I can aDD an extra isolator to or is the entire module fubar? Simple plug wire would've been nice kohler. Lol
    Quote  #8
    AVB
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    Re: Help needed! 2020/05/05 18:52:25 (permalink)
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    Most plug wires are replaceable if you have the time to dig the old one out.
    Quote  #9
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