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Kaw 23hp has no power under load

Discussion in 'Mechanic and Repair' started by mountain, Sep 30, 2006.

  1. mountain

    mountain LawnSite Member
    Messages: 65

    I have a turftiger with a kawasaki fd671d engine that idles fine but loses all power when the blades are engaged. I put new plugs in then ran it and when I pull the plugs out they are covered in a black soot. I cleaned the carburetor, checked that the muffler wasn't clogged, checked engine compression and everything looked OK. I also put a new clutch on about 6 weeks ago
    I can't figure this out and would really appreciate any help.
     
  2. lawnmaniac883

    lawnmaniac883 LawnSite Silver Member
    Messages: 2,613

    Tried adjusting the governor yet?
     
  3. mountain

    mountain LawnSite Member
    Messages: 65

    no, didn't try that. would I adjust the arm or the set screw and is there a certain way to correctly set the governor
    thanks
     
  4. grass_cuttin_fool

    grass_cuttin_fool LawnSite Gold Member
    Messages: 3,526

    How does the airfilter look?

    wayne
     
  5. ProLawns

    ProLawns LawnSite Senior Member
    Messages: 476

    Grass cuttin fool might be on to something. Black sooty plugs are a sign of running too rich and a clogged air filter will cause a rich mixture. Also replace the fuel filter.
     
  6. grass_cuttin_fool

    grass_cuttin_fool LawnSite Gold Member
    Messages: 3,526

    I have a kawasaki on a walkbehind...........sometimes it acts up and wont run good and the air filter looks ok but is too dirty to run good. On the other hand, Ive taken the cover off a Kohler engine and the filter was caked with grass and I wondered how it ran at all and it purred like a kitten.
    Kawasaki's seem to need a cleaner filter to operate correctly, it may not be what is wrong with yours......but maybe worth checking into

    wayne
     
  7. mountain

    mountain LawnSite Member
    Messages: 65

    i didn't replace the filter because the decrease in power from no load on engine to blades on seemed too severe to be caused by a dirty filter
    i'll put a new filter on in the morning and see what happens
     
  8. lawnmaniac883

    lawnmaniac883 LawnSite Silver Member
    Messages: 2,613


    Not out of the ordinary at all. These engines are very sensitive to loss of airflow. Replace filter first
     
  9. Restrorob

    Restrorob LawnSite Fanatic
    Messages: 11,029


    Below is the governor adjustment procedure, How many hours are on this unit ?

    Kawi FD671D Gov Adjustment.jpg
     
  10. scaper27

    scaper27 LawnSite Member
    Messages: 115

    probably lost a cylinder. Does it sound alot different now. Happened to mine
     

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