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  1. #1
    Join Date
    Aug 2007
    Location
    Central Miss
    Posts
    14

    Default question about bobcat 250

    I have a 2008 bobcat 250 w/ the kohler that is constantly revving while on high. This stops while welding though. The solenoid that controls the throttle is continously moving back and forth. Any ideas what causes this?


    thanks

    Dave

  2. #2
    Join Date
    Apr 2013
    Location
    Southeast idaho
    Posts
    30

    Default

    Add Content

  3. #3
    Join Date
    Apr 2013
    Location
    Southeast idaho
    Posts
    30

    Default question about bobcat 250

    Whoops, meant to say " is there any grinders, drills, battery chargers, or lights of some sort pluged in?

  4. #4
    Join Date
    Apr 2013
    Location
    Southeast idaho
    Posts
    30

    Default question about bobcat 250

    Also when was the last time you fueled it? Did you fuel anything else at the same time? If so does that have problems running to?

  5. #5
    Join Date
    Aug 2007
    Location
    Central Miss
    Posts
    14

    Default

    think I narrowed it down to stopped up idle jets in the carb.

  6. #6
    Join Date
    Oct 2004
    Location
    Edmonton, Alberta
    Posts
    7,465

    Default

    May be but I doult it, many of these units even from new do the same thing, Basically the carbs are set up too lean on idle. so the fix is to merely close the choke valve slightly. Problem vanishes

  7. #7
    Join Date
    Aug 2008
    Location
    Orange, TX
    Posts
    1,162

    Default

    I take it you mean the engine is surging.

    You could be looking at a governor sensitivity adjustment issue. Try moving the governor spring outward on the governor lever one hole and see if it improves. If it does but doesn't take all the surge out, move it out another hole if available. Note you will have to check/reset the maximum speed adjustment to spec.
    MM200 w/spot controller and Spoolmatic 1
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    Bobcat 225G Plus LPG/NG w/14-pin*
    *Homemade Suitcase Wire Feeder
    *HF-251D-1
    *WC-1S & Spoolmatic 1
    PakMaster 100XL
    Marquette "Star Jet" 21-110

  8. #8
    Join Date
    Sep 2012
    Location
    seaford de
    Posts
    406

    Default

    I had a couple welders do the same thing.. it is the most aggravating thing. I got rid of one and ended up replacing the carb on the other. Seemed I tried everything else before that

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