Small Engines (Lawn Mowers, etc.)/KAWASAKI FC54OV JOHN DEERE


How do I determine what is causing my engine to backfire during starting? 120lbs compression. Good spark. No fuel. however, when I spray WD40 in the carb the spark ignites the fuel mixture. The fuel shutoff valve seems to be working. Carb bowl is full of fuel.

Is the flywheel key sheared or a valve sticking?

Google "Kawasaki FC540 manual pdf" and you will find the manaul describing how to check the valves.

You can remove the spark plug and valve cover and then try to start the engine while watching the valves to see if there is any sticking.


Small Engines (Lawn Mowers, etc.)

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Eric A. Jones


Lawnmower Repair . Certified Master Service Technician from B&S. Have 23 years experience on B&S, Lawn Chief, Weed Eater, Echo, Peerless, Wheel Horse, Snapper, Atlas, MTD, McCulloch, Homelite and many other numerous brands. Specialize in electrical repair.


Born and raised in the midwest. Started tinkering with engines when I was about 14 on my Suzuki RM-80. I began lawn mower repair at a small hardware store. I knew absolutely nothing. I read lots of repair manuals and met an older fellow who taught me many lessons. I continued working on small engines through high school and paid my way through college working on mowers at the same hardware store. Decided to get away from the midwest and mower repair so I joined the Air Force. I repaired air traffic control electronic equipment and ended up in Hawaii where I got a part time job at Small Engine Clinic. I gained a lot of experience from the Small Engine Clinic and had a blast repairing small engines. I then took the Briggs and Stratton Master Service Technician test and earned my MST. I then traveled to Wisconsin where I attended the factory update training seminar and received formal training. Continued working on mowers part time as I completed 20 years of military. Retired from the military on a Friday and continued in the lawn and garden industry the next Monday.

MAS Aerospace Operations BA Mathematics AAS Electronic Communications AAS Electronic Technology

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