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Surging Kawasaki Engine

Discussion in 'Mechanic and Repair' started by Michael Martinez, Sep 26, 2007.

  1. Michael Martinez

    Michael Martinez LawnSite Member
    Posts: 8

    I have a 15hp Kawasaki on a 48 Lesco and the engine surges. I did all the routine things I could think of. Changed oil, air filter, emptied carb bowl, cleaned fins, sprayed carb cleaner, fuel filter. A couple of times it stopped surging when bring it to full throttle. Anyone have any Ideas?
     
  2. leeker

    leeker LawnSite Member
    Posts: 51

    you need to remove the carb and clean it. you need to clean all the jets. Surging is caused from a lack of fuel.
     
  3. Michael Martinez

    Michael Martinez LawnSite Member
    Posts: 8

    when the fuel was coming out of the jet it was bogging down. I could see the fuel spray then it would bog.
     
  4. leeker

    leeker LawnSite Member
    Posts: 51

    you stated it was surging did you mean engine surging up and down with rpms is it surging on the high and low side or just one
     
  5. Michael Martinez

    Michael Martinez LawnSite Member
    Posts: 8

    yes it's surging on the hi and low
     
  6. leeker

    leeker LawnSite Member
    Posts: 51

    i would put my paycheck it is in the carb. 99.9% of the time surging is caused from lack of fuel. take the carb off and take your time cleaning the jets (all of them) Dont just spray carb cleaner into them. sometimes you will need certain tip screwdriver sizes to get the jets out. just take your time cleaning with carb cleaner and blow the jets and carb out with air. i am sure this will take care of the problem. make sure all gaskets are in good shape. (do not use silcone for gaskets) let me know!!!!!!!!!
     
  7. Michael Martinez

    Michael Martinez LawnSite Member
    Posts: 8

    Thanks Man, I've never done that before but there's always a first.
     
  8. dutch1

    dutch1 LawnSite Silver Member
    from Jayhawk
    Posts: 2,231

    I would tend to agree that you have a carb obstruction. After my experience with two Kaws(17 and 23 twins) do not overlook worn governor internal parts wear. In one case the plastic plate that separate the governor balls had badly worn bosses on the back as well as a badly grooved governor plate. In the other case, the bosses had been sheared off causing the engine to over rev. In the latter case, prior to over reving, the customer experience the surging you describe. Just something you may want to consider if the carb cleaning doesn't correct the problem. It would also depend on the number of hours you have on the unit and whether or not you had ever esperienced any low oil situations.

    Dutch
     
  9. Michael Martinez

    Michael Martinez LawnSite Member
    Posts: 8

    the unit is abouty 8 years old and it is a workhorse. Yes it has expierenced low oil sits. I've never cleanded jets or repaired governors how hard are govenors to work on?
     
  10. Restrorob

    Restrorob LawnSite Fanatic
    Posts: 11,024

    If cleaning the carb as leeker and Dutch mentioned (which I also think so) does not solve the problem check the governor adjustment.


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