Small Engines (Lawn Mowers, etc.)/honda gcv 160


I have a lawnmower (black max brand) with a Honda gcv 160 motor.  It has the arcs choke, flywheel brake, fixed throttle.  It will not start.  It is not getting fuel to the head, but the float bowl is full. I have taken the carb. apart, the jet is clean, I have cleaned the ports, the float valve is like new, I have the shop manual, and all the linkages etc. are correct, the choke works as it should, I don.t have a compression tester, but the motor only has about 20  hours, it seems ok.  I crank it, the plug is dry.  I tried starter fluid, it will give a weak backfire as it spins down.  it is getting spark when i ground the plug on the head,  I have not checked the valve clearance nor the timing.

Check the valves and make sure the intake valve is not sticking.  Just pull the valve cover off and see if the valves are properly working...don't worry about the clearances for now...just make sure they open and close quickly.

Did you blow compressed air from an air compressor through the carburetor orifices?


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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