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12.5 Kaw idle fluctates

Discussion in 'Mechanic and Repair' started by DynaMow, Apr 27, 2006.

  1. DynaMow

    DynaMow LawnSite Senior Member
    Messages: 570

    12.5 HP older kaw.

    when blades are engaged it runs like a brand new mower, when I disengage 3-5 seconds later the idle starts to fluctuate up and down at high idle, a little better the lower the idle. Also when I start up at each property it seems to run fine until blades are disengaged.

    What do u think the problem is?
     
  2. Restrorob

    Restrorob LawnSite Fanatic
    Messages: 11,029

    When it goes to fluctuate grab the choke linkage rod at the throttle plate and very slowly start applying the choke, If it goes away it sounds like the carb. needs a tear-down cleaning. If it doesn't go away it may need a governor adjustment.
     

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