![]() The engine dies if a clogged carburetor can’t properly mix gas and air to supply the cylinder with combustible fuel. The engine probably starts because gas enters the cylinder when you press the primer bulb. ![]() That gas/air mixture then moves into the cylinder where the piston compresses it and the spark plug ignites it. The carburetor mixes air with fuel in the proper proportion to produce a combustible gas. When your snowblower engine only runs for a few seconds and then dies, the problem is often caused by a gummed-up carburetor. Why does my snowblower engine run for only a few seconds then stop? Excessive use of starter fluid in a snowblower engine can cause damage or wear to some engine parts. For most snowblower engines, occasional use of starter fluid won’t harm any engine parts. Frequently asked questions about snowblower starting problems Can I use starter fluid in my snowblower engine?Ĭheck the owner’s manual for your snowblower or your snowblower’s engine regarding the use of starter fluid. ![]() Our tech can visit your home and quickly fix your snowblower so you can get back to clearing snow. When these easy DIY tips don’t help you get your snowblower started, you may need to schedule service by a Sears Technician. The gap for the spark plug in many common snowblower engines is 0.020-inch – 0.030-inch.įor more tips on checking the spark plug, read our How to check and replace a snowblower spark plug article (with video). Follow the directions in the owner’s manual for your snowblower to set the proper spark plug gap. You’ll also need to set the spark plug gap properly when installing a new spark plug. Replace the spark plug if it’s fouled or damaged.Ĭheck the spark plug gap if the electrode isn’t fouled. If you didn’t already pull out the spark plug, remove it and inspect for damage. If you pulled the spark plug out to spray starter fluid into the cylinder when following the above troubleshooting tip, then you already know whether it’s fouled or damaged. Follow the easy DIY steps in our Replacing a Fuel Line on a Snowblower video to install a new fuel line. Be sure that you’re in a well-ventilated area when checking the fuel line for a crack. The fuel line is typically exposed in many snowblower engines so it’s easy to check. Replace the snowblower fuel lineĪ crack in the fuel line will cause the carburetor to just suck air in through the opening caused by the crack in the fuel line instead of drawing fuel in from the gas tank. You can also replace the carburetor instead of rebuilding it if the carburetor is so clogged that cleaning it doesn’t restore the fuel supply to the engine. You can follow the steps in our How to rebuild a snowblower carburetor repair guide/video to rebuild the carburetor. Getting to the carburetor in many snowblowers is a fairly complicated repair because the carburetor is behind a shroud. If replacing the fuel filter doesn’t fix the fuel supply problem, then you’ll likely need to rebuild or replace the carburetor. Replacing the fuel filter when the engine starts briefly using starter fluid may fix the fuel supply issue. If the engine starts and runs briefly then quits, you’ve eliminated many other possible causes of the engine starting failure and narrowed down the problem to a fuel supply issue. Reinstall the spark plug and spark plug wire. Spray a short burst of starter fluid into the cylinder through the spark plug hole. Pull off the spark plug wire and remove the spark plug. You can check to see if a fuel problem is preventing the snowblower from starting by conducting this test: You typically can’t tell whether a fuel filter is clogged by visually inspecting it. The engine’s carburetor won’t get any gas if the fuel filter is clogged. The engine may start right up with fresh fuel. In a well-ventilated area, drain the old gas out of the tank and fill it up with fresh gas. ![]() ![]() Bad gasoline is one of the leading causes of snowblower starting problems. The snowblower engine may start with stale fuel when it’s warm, but everything needs to be right when starting the engine in cold winter weather. Drain and refill the gas tank with fresh fuel ![]()
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