Kawasaki Surging RPM's?

Discussion in 'Mechanic and Repair' started by calvinslawnservices, Jun 24, 2012.

  1. calvinslawnservices

    calvinslawnservices LawnSite Senior Member
    Messages: 836


    I have a Kawasaki 19 horse engine. It surges in RPM's and stay's there for a minute or two, then will drop back to normal RPM's. It will do it on start up and random times when I hit the pto. Any ideas on what is causing this??:dizzy:

  2. The Lawn Ranger CT.

    The Lawn Ranger CT. LawnSite Member
    Messages: 194

    Tear down carb and blow all the jets out and sray with cleaner~
    Also check the gasket on the intake where it meets the heads, if worn can cause a surge,...while its idling and surging carefully spray some carb cleaner around the intake gaskets as mentioned...and if the idle goes up there is a gasket leak and needs replacing
  3. jetta

    jetta LawnSite Member
    Messages: 223

    dont overlook the fuel filter,thats what corrected mine
  4. Tharrell

    Tharrell LawnSite Silver Member
    Messages: 2,967

    It's probably in the carb but, don't forget the air filter.
    Either blow it out real good or simply replace it.
    The inner filter is easy to overlook if it LOOKS good.
    Fine dust can clog it without looking obvious.
  5. calvinslawnservices

    calvinslawnservices LawnSite Senior Member
    Messages: 836

    I discovered the problem last night and there was a wood chip in the bowl below the air filter. No idea how it got in there, I never leave the air filter off for more than a couple minutes to clean the dust and grass off.

    Thanks for your help.

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