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Kohler CV15 Problems

Discussion in 'Mechanic and Repair' started by Wolf Creek, Jul 13, 2005.

  1. Wolf Creek

    Wolf Creek LawnSite Member
    Messages: 9

    Hi, new member here. A lot of great info! Anyways, on to my questions:

    This Kohler CV15 I'm working on hunts at full throttle. It also
    backfires a little when throttling down. I've cleaned the carb, put
    a new aircleaner on, checked and cleaned the plug (which reads
    normal), and adjusted the governor. It idles great and throttles
    up fine but after a minute or two at full throttle that's when it
    starts to hunt and spit. Any ideas on how to cure this?

    I replaced the plug and it's a little better but still hunting and
    spitting a bit. Time to clean the carb again I guess. I also noticed
    after I ran it awhile what sounded like gurgling or bubbling in
    the carb and some gas was pooling in the air cleaner bowl.
    That's not normal, is it?

    Another problem is that the ammeter is always showing a charge
    and when I put a multimeter on the battery it reads anywhere
    from 16-16.5 volts, even with the lights on. The battery is new
    but went dead a couple days ago when the key was left on. I
    charged it with a battery charger but is the charging system or
    battery going or gone?
  2. Restrorob

    Restrorob LawnSite Fanatic
    Messages: 11,029

    It sound like it may be time to go back into the carb., If it still hunts afterwards you may have the RPM adjusted too high which would cause a hunt also.
    As for the charging system; I would let the unit sit over nite then put your multimeter on the battery and see what you get,It shouldn't be but 12 to 12 1/2 volts then start the engine and throttle up to full speed and check the voltage it shouldn't be but around 14 1/2 max. If its higher you may have a voltage regulator acting up.
  3. Redneckn

    Redneckn LawnSite Senior Member
    Messages: 294

    If the governor arm has "slipped" on the governer shaft, it can also make it "hunt". may want to consider doing a static governor adjustment as well.
  4. Wolf Creek

    Wolf Creek LawnSite Member
    Messages: 9

    Thanks guys, got the hunting fixed. Reset the governor per specs, replaced fuel filter with OEM model, and tore the carb apart again. Cleaned it up real good and now it runs like new. :cool2:
  5. Redneckn

    Redneckn LawnSite Senior Member
    Messages: 294

    That great. if it gives anymore worries, feel free to ask.

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