Small Engines (Lawn Mowers, etc.)/Tecumseh 2 cycle carberator


QUESTION: I have a jiffy ice auger 30 with Tecumseh carb, it leaks gas from the choke outlet when I prime it and it will continue to leak, I rebuilt carb with new diaphragm, needle, and gaskets, still leaks when primed what's going on?

ANSWER: I am assuming you have a diaphragm style carb, correct?

Did you do a Google search for "Tecumseh diaphragm carburetor" or "Tecumseh 2 cycle carburetor"?

Was there a seat under the inlet needle that may not have been installed when rebuilding?


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

QUESTION: Yes it is diaphragm,not sure what you are calling a seat but I put diaphragm and needle all back together like I watched on YouTube and Google instructions

Look at this image:

The rubber seat has to be installed a certain way or the carb will leak gas.  The tip of the needle should contact the smooth side of the rubber seat...NOT the GROOVE side of the seat.


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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