How do I know if my snowblower spark plug is bad?

Faulty spark plug warning signs

1. The engine requires repeated attempts to start or the engine won’t start at all.
2. The engine misfires or runs rough.
3. The engine starts, but stalls shortly after.
4. There is a noticeable increase in fuel consumption during normal equipment use.

What would cause a snowblower not to start?

The carburetor might be clogged. A clogged carburetor is most commonly caused by leaving fuel in the snowblower for a long period of time. This sticky fuel can clog up the carburetor and prevent the engine from starting. If the carburetor is clogged, try cleaning it with carburetor cleaner.

What does a spark plug do on a snowblower?

The snowblower spark plug creates the spark that ignites the fuel to start engine. If deposits build up on the spark plug electrode or if the ceramic insulation cracks, the spark plug won’t create the spark. Fortunately, replacing a spark plug is an easy and inexpensive fix.

Why is the spark plug on my snowblower not working?

The spark plug won’t create spark if deposits build up on the spark plug electrode or if the ceramic insulation cracks. Replace the snowblower spark plug if it’s fouled or damaged.

Why does my Troy Bilt snowblower not start?

You should see a strong spark between the tester’s terminals when the engine is cranking. If there is no spark, this indicates that the spark plug is defective and should be replaced. The carburetor might be clogged.

What to do if your snowblower starter fails?

A failed rewind starter or electric starter won’t spin the engine so replace those components if broken. For a quick compression test, remove the spark plug, cover the cylinder hole with your thumb and pull the starter rope. If you don’t feel air against your thumb, you may need to adjust the valve lash.

How do you fix a fuel supply problem on a snowblower?

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. 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.