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Donald, Small Engine Technician
Category: Small Engine
Satisfied Customers: 2189
Experience:  I have 25+ years of experience repairing 2 & 4 cycle engines
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Have an 18 HP Kohler Magnum engine one cyl has bright crisp

Customer Question

Have an 18 HP Kohler Magnum engine one cyl has bright crisp spark on the tester and the other side is very weak and dim. This coil runs both cyl's, can they default one one side, as I'm only running on one cyl.
Submitted: 1 year ago.
Category: Small Engine
Expert:  Donald replied 1 year ago.

Hello and thank you for choosing Just Answer. My name is***** will be happy to assist you. Due to both spark plugs firing from same coil, but one side has a brighter spark, indicates that your ignition coil is at fault.

Expert:  Donald replied 1 year ago.

Make sure that the spark plug wire that is on the side with dim spark, does not have a bare spot, that could be partially grounding against some metal part of your engine.