27 HP liquid cooled kawasaki engine with no power

Discussion in 'Mechanic and Repair' started by mauler01, May 6, 2007.

  1. mauler01

    mauler01 LawnSite Member
    Posts: 26

    i have 27 hp kawasaki motor on my 60" exmark and it gets bogged down very easily. even if i go up a hill w/o the pto engaged it slows down . and when cutting grass it could almost stall it out.
    does anyone know what the problem could be?
    it starts fine and revs up to speed fine, just no power.
     
  2. Bill Kapaun

    Bill Kapaun LawnSite Senior Member
    Posts: 923

    How old are the spark plugs?
    Fuel filter clogged?
    Fuel pump weak?
    Clogged fuel cap vent?
     
  3. The mayor

    The mayor LawnSite Senior Member
    Posts: 592

    Maybe the air filter is dirty.
     
  4. Restrorob

    Restrorob LawnSite Fanatic
    Posts: 11,022

    What tha heck, May as well get my question out....

    Are you sure it's running on both cylinders ?
     
  5. mauler01

    mauler01 LawnSite Member
    Posts: 26

    yes it is running both cylinders. as i said it seems to run and rev up fine.
    just as soon as any load is put on the engine it kills the rpms. i mean i cannt go more then 1/2 speed cutting grass. and if its thick or up a hil maybe .5 mph. an air filter or plug could cause that much loss of power?
     
  6. mauler01

    mauler01 LawnSite Member
    Posts: 26

    i think i forgot to mention the engine has just been rebuilt,isthere something i am missing?
     
  7. Restrorob

    Restrorob LawnSite Fanatic
    Posts: 11,022

    Was this rebuild done by a shop ? If so take it back to them to worry with.

    Or you can check the governor adjustment.


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  8. mauler01

    mauler01 LawnSite Member
    Posts: 26

    it was not doneby a shop, so ineed to figure it out.
     
  9. mauler01

    mauler01 LawnSite Member
    Posts: 26

    well ichecked the plugs , vent cap, and everything else including the governer adjustment.
    still runs the same. is it possible that the valves be out of adjustment enough that i would lose that much power but still be able to run?
    if so , can anyone tell me howtoadjust them. i called all the shops in my areas and they are booked up for weeks.
     
  10. Restrorob

    Restrorob LawnSite Fanatic
    Posts: 11,022

    Here Ya go.....


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