Gas Snowblower: Won't stay running

If your engine only runs for a few seconds and then shuts off, you could have a gummed-up carburetor. The engine probably starts because gas enters the cylinder when you press the primer bulb. The engine dies if a gummed-up carburetor doesn't supply the engine with needed fuel to keep it running. Rebuild or replace the carburetor if the engine dies soon after start-up.

gas snowblower

These repairs may help solve your gas snowblower problem

Clean and  rebuild the snowblower carburetor

Clean and rebuild the snowblower carburetor

Rebuild kits are available for most carburetors. The kit contains the essential components such as jets, pins, seals and gaskets to overhaul the carburetor. You can sometimes fix a fuel supply problem by disassembling and cleaning a carburetor. Use the rebuild kit to rebuild the carburetor after cleaning it.

December 1, 2015
By Lyle Weischwill
How to rebuild a snowblower carburetor

The snowblower carburetor mixes air and fuel going to the engine. You might need to rebuild the carburetor if the snowblower won't start or dies soon after starting.

Repair difficulty
Time required
 45 minutes or less
Read more
Replace the snowblower carburetor

Replace the snowblower carburetor

Over time, varnish from stale gasoline builds up in the carburetor, decreasing the amount of air/fuel mixture reaching the engine. Replace the carburetor if it's severely clogged with varnish or if the orifices are clogged with debris and can't be cleared using carburetor cleaner and compressed air.

Symptoms for gas snowblowers

Choose a symptom to see related snowblower repairs.

Main causes: stale gas, clogged carburetor, clogged or broken fuel line, dirty spark plug, bad rewind starter, incorrect valve lash
Main causes: broken shear pins, worn or loose auger drive belt, auger drive cable failure, damaged auger, bad gear case
Main causes: loose drive clutch cable, damaged drive clutch cable, worn friction disc, scraper blade scraping the ground, engine problems
Main causes: punctured tire, damaged rim
Main causes: snow build-up in chute, chute drive mechanism failure, bad chute control assembly
Main causes: clogged chute, damaged auger blades, broken shear pins, worn auger belt, damaged gear case, engine problems
Main causes: dirty carburetor, stale fuel
Main causes: clogged chute, snow build-up in auger housing, broken auger shear pins, auger drive belt needs adjustment, auger cable problems
Things to do: replace the spark plug, change the oil, rebuild the carburetor, adjust valve lash, adjust or replace the belts
Repair guides for gas snowblowers

These step-by-step repair guides will help you safely fix what’s broken on your snowblower.

December 1, 2015
By Lyle Weischwill
How to replace a snowblower spark plug

You need a spark to fire up the engine of your snowblower, and that spark comes from a spark plug. You can replace one in minutes.

Repair difficulty
Time required
 15 minutes or less
December 1, 2015
By Lyle Weischwill
How to replace a snowblower stop switch

Replace the stop switch on your snowblower if your engine won't start.

Repair difficulty
Time required
 30 minutes or less
December 1, 2015
By Lyle Weischwill
How to replace a snowblower skid shoe

To prevent damage to your snowblower auger, replace the skid shoes when both sides of the shoe are worn. It's an easy repair that you can handle yourself.

Repair difficulty
Time required
 15 minutes or less
Articles and videos for gas snowblowers

Use the advice and tips in these articles and videos to get the most out of your snowblower.

November 1, 2014
How to lubricate a snowblower auger shaft video
By Sears PartsDirect staff

This video shows how to how and where to lubricate the auger shaft on a snowblower.

November 1, 2014
How to adjust a snowblower shift cable video
By Sears PartsDirect staff

This video shows how to adjust a snowblower's shift cable.

November 1, 2014
How to adjust snowblower skid shoes video
By Sears PartsDirect staff

See how to periodically adjust the skid shoes on a snowblower so they are flush with the ground.