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Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 13581
Experience:  have worked on and around most engine models for 35 yrs./Polaris ATV expert
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Kohler v720 series backfires

Customer Question

Kohler v720 series backfires
Submitted: 2 years ago.
Category: Small Engine
Expert:  Curtis B. replied 2 years ago.
Welcome to JUST ANSWER small engines, let me try to help you !! With twin engine, loosen the spark plug wires and with engine idling, pull off one wire at a time. If engine dies when one is removed, the opposite cylinder is not firing, and will be source of backfire. With cylinder located, remove the rocker cover and check the valves on that cylinder. SV700 series has adjustable valves and if valves are too tight, can cause backfire. should be set on .004 to .006 inch clearance.
Expert:  Curtis B. replied 2 years ago.