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What would cause my Craftsman snow thrower model number 536.881851 to keep stalling?

Snow thrower keeps stalling when I engage the auger or run into 5 or 6 inches of snow. I drained the gas and added new with fuel stabilizer but this did not work.

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Craftsman , Snow Removal Equipment
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2 Answers from these members:
bigeds
I had the same problem. After disassembling the engine, after the warrantee period expired and Sears was of no help, I found that the second piston ring had initially seized in the ring land of the piston and was scouring the engine bore generating enough heat that the piston would seize to the wall after the engine idled for a while or had stopped altogether, as the high heat generated was not quickly dissipated and the ring seized to the wall. After initially breaking the bond free, the engine would start again until the next use. The cycle kept repeating until there was a grove in the bore that would not allow full piston travel, even after the piston was freed. Each time the bond was broken by an attempt to start the engine more material was removed from the cylinder wall. I believe we are not alone with these problems of mysterious stopping and seizing of the engine. This scouring of the piston wall caused excessive blow by, which can create oil leakage.
Big Ed
by bigeds
March 3rd, 2010
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Mark Thomas
It sounds like your snow thrower is starved for fuel. The main fixed jet being plugged by debris usually causes this problem. The main jet screws into the bottom of the carburetor. I have provided you with an image of the carburetor and a arrow pointing to the main jet. Once the main jet is removed it needs to be cleaned with carb cleaner and a small metal wire. I have found a video that will aid in the cleaning the main jet. Your model is slightly different from yours.

How to clean the main jet of a carburetor

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If you do not feel confident repairing this problem yourself, then you can have it repaired at your home by a Sears technician. Here is a link for the website:

Sears Home Services

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Here is a link to buy the parts needed from our parts web site

Sears Parts Direct

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by Mark Thomas Earned 110 community points in Craftsman
February 17th, 2010
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