Thank you for your question.
I am sorry you are having a problem with the snow blower. By what you have stated, the carburetor needs to be cleaned. Over the years, the passages of the carburetor can become partly plugged and cause the problem you are having.
To clean the carburetor on your snow blower you have to tip the snow blower onto its nose. Then locate and remove the main jet securing the float bowl to the carburetor. Make sure to watch for the o-ring that seals the float bowl to the carburetor. Set the o-ring aside so it does not get sprayed with carb cleaner. The carb cleaner will swell the o-ring and it cannot be reused. Next, clean the small holes of the main jet wit a bread tie wire and carb cleaner. The float bowl needs to be cleaned also. You can use carb cleaner and a scotch brite pad. Set the float and the main jet aside. With the straw attached to the carb cleaner, spray carb cleaner up in to the tube of the carburetor where the main jet threads. This will flush out the emulsion tube. After it is flushed, you can reassemble the carburetor. Please make sure to place the o-ring onto the carburetor before installing the float bowl.
Tip the snow blower back down and check the operation. If you still have a problem, I recommend replacing the carburetor.
I have found a video on you tube that will aid in the cleaning of the carburetor.
I hope this is helpful. Please reply below with any additional questions you might have.
If you do not feel confident repairing this problem yourself, then you can have it repaired by a Sears technician. Here is a link that will provide the nearest drop-off locations:
Sears Home Services
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