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Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 28370
Experience:  have worked on and around most engine models for 35 yrs./Polaris ATV expert
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I have a cub tractor with a Kohler command 22 engine and it

Customer Question

I have a cub tractor with a Kohler command 22 engine and it miss fires under a load. I have changed plugs and cleaned the air filter. I took a compression test and have 140 in one and 150 in the other. any ideas?
Submitted: 1 year ago.
Category: Small Engine
Expert:  Curtis B. replied 1 year ago.
CAn you run a cylinder balance test? Loosen the spark plug wires, and with engine idling, remove one wire at a time. Engine should continue to run. If engine dies when one wire is removed, the opposite cylinder is not firing. May have one bad coil. You may have to run the test when engine is hot and missing to find the bad one.
Expert:  Curtis B. replied 1 year ago.
Did you find spark problem? Please ACCEPT to close.