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Discussion in 'Mechanic and Repair' started by cccmachine, Sep 25, 2007.

  1. cccmachine

    cccmachine LawnSite Member
    from memphis
    Posts: 38

    On a JD GX255

    Will not start.Backfires thru the carb.

    Things we checked

    Turns over good
    Spark both coils good
    Flywheel key good
    Compression 95 both cylinders
    Fuel shutoff valve good
    Fuel pump good
    Fuel to cylinders yes
    Valve clear .005

    Took off intake and inspected intake valves.Both are opening and closing.
    With intake vales closed filled both intake chambers with gas.No gas leaked out in 24 hours.

    Is there anyway a gear on the cams or crank could of slipped out of time?

    Can Somebody please help me!!!!!!!! :cry:
  2. Restrorob

    Restrorob LawnSite Fanatic
    Posts: 11,023

    Not very common, But have you checked the flywheel key ?

    I had one not too long ago that stripped half the teeth off the cam gear so anything is possible.
  3. cccmachine

    cccmachine LawnSite Member
    from memphis
    Posts: 38

    Flywheel key is good.

    Are the gears keyed on the crank and cam shafts?

    If she is junk where would be the best place to buy a new motor.

    Man just 59 hrs on her.

    If it werent for bad luck
  4. Restrorob

    Restrorob LawnSite Fanatic
    Posts: 11,023

    Can you go into detail about the above statement ?
  5. pugs

    pugs LawnSite Gold Member
    Posts: 3,022

    Any Kawasaki engine dealer can get you a new engine for that...although that engine is probably not the original engine either...

    FH601V-FS09 I think is the latest...I just put one on something recently. But S09 is not a JD engine. Most JD Kawasaki engines end in S00.

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