Small Engines (Lawn Mowers, etc.)/Lawn Boy Starter


QUESTION: I have a Lawn Boy model 10361 push mower with electric starter. Starter will spin but not engage. Made sure the pinion gear was clean and used some graphite spray as a little lubricant, but still will not engage. Any suggestions?

ANSWER: You should have a Tecumseh engine model LEV120-361546B.

Is the battery fully charged?  Did you check the voltage drop from the starter to the battery to verify the condition of the wiring and connections?

How old is the battery?


---------- FOLLOW-UP ----------

QUESTION: Battery is only one or two years old and seems to hold a charge around 13 volts. Charger is working fine. Checked connections and have about the same voltage at the starter, about 12.75 volts. I went ahead and cleaned the terminals, but noticed no difference. Once or twice the starter did engage and the engine started right up, but most of the time it just spins and does not engage. I even took the pinion gear apart and made sure it was clean. I'm out of options. Any other suggestions? I am looking to sell this mower, so I don't really want to spend any money on it. The engine fired right up with the first pull on the starter.

Did you lube the pinion with dry graphite or WD-40?

I suspect the battery since they fail frequently.  

Did you try connecting another battery from a riding mower, motorcycle or atv? You could try using a car battery but it is a little large for what you need.


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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