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Exmark Z engine slows down when engaging blades

Discussion in 'Mechanic and Repair' started by syrgo, Sep 14, 2019.

  1. syrgo

    syrgo LawnSite Member
    Messages: 7

    On first lawn all is good. On second lawn blades start up slowly. Now blades are dragging engine down. Pulled belt all pulleys seem fine. Engine runs fine without belt on. I now here a clicking sound from clutch now and then. It acts like bearing is heating up and causing excess load but all spindles are only warm to the touch. I called clutch mfg and he blames spindles but they all seem smooth running.
    Any suggestions on trouble shooting issue.
  2. Breezmeister

    Breezmeister LawnSite Silver Member
    Male, from South Jersey
    Messages: 2,701

    With out model number, engine etc etc.....I could only guess.

    You have a Multimeter ?

    How old is your battery ?

    What I would do is:
    If you don't have the manuals for your machine, go to the Exmark site and put your numbers in and get the manuals....

    Make sure your connections at the battery are tight, make sure the ground at the machine is tight and clean.
    Test the battery at the terminals. You should have 12.6 volts. With the engine running, you should have 13 + volts
    If the battery is 2 years old and has 12 + volts, it could still be bad, get it tested....

    Clutch could be going bad if you have a couple thousand hours on it.......
  3. OP

    syrgo LawnSite Member
    Messages: 7

    LZS22KA484 22hp Kawasaki, Clutch has only 200 hours on it. I will check your suggestions.
    Thank you for your help
  4. TomH&H

    TomH&H LawnSite Senior Member
    Male, from Coopersburg, PA
    Messages: 336

    Could also be the flywheel. Check the contacts for rust, damage, etc. I had the same issue but with a Kohler.
  5. OP

    syrgo LawnSite Member
    Messages: 7

    Thank you I will check that,we do wash them a lot.
  6. hal

    hal LawnSite Fanatic
    from Georgia
    Messages: 5,317

    Check your idler pulleys too, bearing maybe dry.
  7. OP

    syrgo LawnSite Member
    Messages: 7

    Thank you everyone for your help,Cleaned flywheel,cleaned clutch connection,checked battery and changed plugs. Running fine now
    Thanks again
    Breezmeister likes this.

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