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JD 425 Cuts out when warm

Ed Long 20hp Kawasaki with 650 hours, cam has been replaced.
Starts and runs just fine but after running(mowing) for 15-20 minutes it starts missing and will eventually die. After a 10 minute cool-down, it starts right up. I suspect it is a coil-pack/heat related issue, but hate to just buy and bolt on parts with no diagnosis.
The motor does not run hot, coolant level is fine, oil is fine.??????????????????????

Thanks

Charles Sandine The time delay module must be replaced. Costs about $16. Located on the left side of motor...small,round object with 5 wires ...red,two yellow, orange and black. Easy changeout. Probably most common problem with these units. JD should provide them for free as they are such a pain. Sure messes up a good mowing.
bontai Joe Have you tried running it with the gas cap loose? If the vent is clogged the motor will starve for fuel as a vacuum is created in the fuel tank.


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