Get a carb kit for the Snapper and a gal can of carb cleaner. NAPA or any part store has the can for about 20 bucks. The spray stuff won't work. Take the carb off the engine then completely disassemble it.

I always twist the adjustment screws to close counting the # of turns and record each before I remove them for cleaning.

The cleaner will soften the buildup of the amber-like substance that clogs the small passages of the carb. Drop the carb in the dip screen that comes inside the can and leave it over night. Take the parts out and blow the passages out with an air compressor. Scrub the parts in hot soapy water and rinse. Blow them dry with air.

The kit comes with a diagram which will guide you through reassembly.

If you never want to go through this again, buy real gas for your weedeater, lawnmower and all outboard motors.

Most of the guys that buy and sell small engines are making a living off folks who use ethanol.

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84 300SD
85 380SE
83 528e
95 318ic