Kawasaki engine (fh601v) troubleshooting

Discussion in 'Mechanic and Repair' started by blabarre, Aug 10, 2011.

  1. blabarre

    blabarre LawnSite Member
    Posts: 80

    I have a jd 717a with a 19 hp kawi engine. The issue I've been having is when I go to crank the mower up, whether its warm or hot, it sputters and backfires. I will lower the throttle and it will straighten out and if I ease the throttle up it will not sputter. It also does this when I engage the blades. If I can ease the throttle up and get it to full throttle it will do fine. The only time it does this is at startup and when I engage the pto. Any thoughts would be greatly appreciated. I have mixed some seafoam in the gas to help but it had no affect. The mower has 190 hrs on it. Thanks
    Brian
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  2. Restrorob

    Restrorob LawnSite Fanatic
    Posts: 11,024

    Brian, Can you look on the side of your engine and get me the spec number ?

    [​IMG]
     
  3. blabarre

    blabarre LawnSite Member
    Posts: 80

    Fh601v -bs32-r
    Fh601vc29924

    These are the two numbers on that sticker
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  4. topsites

    topsites LawnSite Fanatic
    Posts: 21,654

    When's the last time the air filter and spark plugs were changed, and if it has
    been longer than you can remember, maybe it's time.
     
  5. blabarre

    blabarre LawnSite Member
    Posts: 80

    Air filter was done seventy hrs ago. Spark plugs not sure...
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  6. blabarre

    blabarre LawnSite Member
    Posts: 80

    I have a canister filter. Doesn't look terribly dirty. How do u know when it needs changed out?
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  7. Restrorob

    Restrorob LawnSite Fanatic
    Posts: 11,024


    When the paper is nasty brown looking and a abundance of sand falls out of the pleats when it's tapped against the rear tire.

    Check your PM's..... Thumbs Up
     
  8. pugs

    pugs LawnSite Gold Member
    Posts: 3,023

    Why do you want the numbers? Its on a JD... Just curious.
     
  9. blabarre

    blabarre LawnSite Member
    Posts: 80

    Well hate to revive this old thread, but my issue still hasn't been resolved. When I got the mower going at the beginning of the year, it did not sputter at all or backfire. I took it in to get serviced and the carburetor cleaned, and within a few weeks of getting serviced, it starting the sputtering and backfiring again. It has been doing it all season. I try to use ethanol free gas to see if that could be causing it, but it still does it. Any other thoughts on what it could be? I've seen other threads mentioning bad ignition coil, bad intake mounting gasket, and valve adjustments... does my issue sound like it could be from one of those factors?
     
  10. Restrorob

    Restrorob LawnSite Fanatic
    Posts: 11,024

    Brian,

    It could be any you mentioned, You can check the intake gaskets by spraying carb & choke cleaner around the intake while it's running and listen for a change in RPM's.

    Test the coils as below with a multimeter;

    [​IMG]


    Adjust the valves as below;

    [​IMG]
     

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