Small Engines (Lawn Mowers, etc.)/Ruff running engine


I have a small Honda generator (EG 650) with a Honda G100 engine. My problem is I now have it running but will only run with the choke close and it runs ruff, going from slow almost dying to running fast. But will die if I open the choke. Have replaced the spark plug, cleaned the air filter, taken the carb apart and cleaned it. There is a dent it the fuel tank but have got it almost out so the fuel cap fits better. Any ideas would be great.

It is running lean.  Will it run if the gas cap is loose?

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

Did you spray carburetor cleaner through all of the carburetor orifices to make sure none of them are clogged?


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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