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Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 26491
Experience:  have worked on and around most engine models for 35 yrs./Polaris ATV expert
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I have a sv710-740 on a garden tractor . Engine starts and

Customer Question

I have a sv710-740 on a garden tractor . Engine starts and runs fine but looses power under a load.
Submitted: 8 months ago.
Category: Small Engine
Expert:  Curtis B. replied 8 months ago.

Run a cylinder balance test. Loosen the spark plug wires and with it idling, remove one wire at a time, engine should continue to run, if engine dies when either wire is removed, the opposite cylinder is not firing. In that case, check it for spark. May have a bad coil, causing engine to run on one cylinder, causing power loss.

Customer: replied 8 months ago.
I used your cylinder balance test and determined that the coil was bad on one cylinder. I switched the coils and the problem followed the bad coil. Thanks for the help. I will definitely call you if I have additional questions.
Expert:  Curtis B. replied 8 months ago.

Kohler recommends replacing both coils if one is bad!

Expert:  Curtis B. replied 8 months ago.

Kohler recommends replacing both coils if one is bad!

Expert:  Curtis B. replied 8 months ago.

Please rate to close and get me credit! Thanks.