John Deere 445 Surging

miceli

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Apr 13, 2013
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This model 445 has a Kawasaki fuel injected 22 HP motor. Just got it back from a repair shop for a sticky valve that kept throwing a push rod. They said they cleared the problem by spraying brake cleaner on the valve stem and tapping on the stem, draining the fuel tank and putting fresh fuel in. Motor ran fine for 1 hour, shut it down and when I tried to restart the motor it will surge. High rpm to low rpm then stall out. If I slow the motor down it will continue to run but I can't mow at the lower rpm. I pulled the plugs and they are a nice brownish color. I use no ethanol fuel at 90 octane with techron added.
Any ideas??
Miceli
 
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