Small Engines (Lawn Mowers, etc.)/tecumseh shorts out


Mr Jones,

I have a MTD snow blower that is about 18 years old. It has been a fantastic machine. The 1 problem that I have is if snow blows onto the engine, it shorts out. I can dry it out with a small heater in 15 or 20 minutes and it will run great until it gets wet again.
It has a Tecumseh hssk50 67376 p engine. I don't want to tear into it unless I have to. Any ideas?

Thanks in advance,


Service manual URL:

To start, you need to determine if the ignition, fuel or other system is the problem area.

Do you have an inline spark tester to verify you have spark when the engine stops?  

Let me know if you have spark when the engine stops.

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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