You can leave a response, or trackback from your own site. A bad spark plug or fouled spark plug can also cause problems in your Car, Truck, Lawn Mower, Chainsaw, or any other gas-powered engine. NovemHow to check and replace a snowblower spark plug By Lyle Weischwill You should check your snowblower’s spark plug after every 25 hours of operation, or at least once every snow removal season. You can follow any responses to this entry through the RSS 2.0 feed. If it is dry then gas is not getting into the engine and you will need to recheck and / or clean the carb and gas tank. You will need to recheck that it is gaped properly and that the spark plug is actually receiving a jolt of electricity. If the plug is wet, and you can smell gasoline, then gas is getting into the engine. What’s next? Turn the engine over a few times, remove the spark plug and check for gasoline on the plug. Fuel Line Blockage Plugged Fuel Filter (If your snowblower uses one) Engine Needs to Be Primed Dirty Carburetor Bad Electric Start Broken Recoil 1. You know there is spark getting to the spark plug and you have either cleaned the plug or replaced it. The shuttle cock is open so gas can get to the carb. If your engine is still running rough or not at all you will have to search for other solutions.Īt this point you know you have gas in the tank. If the tip is covered with black ash, the engine’s air/fuel mixture is probably too rich or the choke may be sticking. The piston rings are likely damaged if the tip of the spark plug is covered with oil. Replace the plug at the interval recommended by the manufacturer. Make sure you also set the gap on this plug as well. A grayish-colored tip indicates that the engine is in working order. We recommend you regularly inspect the spark plug on your snow blower for any signs of damage. Observe that there is a normal spark that allows the mower to run. Detonation can cause severe internal engine damage as well. Start the mower when it is cold, and look through the window of the tester. Push it in firmly to make sure there is a solid connection.
#Snowblower bad spark plug symptoms free#
If the spark plug is badly corroded or cannot be cleaned properly, replace it with a new one. Plug the free end of the tester into the original spark plug boot. Tighten the spark plug into the engine until snug and press the spark plug wire onto the spark plug.Next remove the plug, clean it and re gap it to the specification in your manual. Adjust the distance by carefully bending the hook-shaped point. The distance between the two metal points on the tip of a spark plug is referred to as the “spark plug gap.” Measure the spark plug gap with a spark plug gauge and compare that measurement to the measurement called for in the lawn mower’s owner’s manual. If the porcelain tip of the spark plug is broken, the air/fuel mixture is probably too lean or the engine oil level may be low.Ĭheck and adjust the spark plug gap if necessary. Such a faulty piston can result in engine misfire, excessive oil combustion, and rattling sounds while the. Due to excessive heat, the piston may soon start cracking. If the tip is covered with black ash, the engine’s air/fuel mixture is probably too rich or the choke may be sticking. Bad Piston: Aside from a faulty piston ring allowing engine oil to flow to the cylinder and saturating the spark plug, a bad piston can also cause the oil in the spark plug well.
A grayish-colored tip indicates that the engine is in working order. Remove the spark plug by turning it in a counterclockwise direction with a deep-set socket and a socket wrench.Įxamine the tip of the spark plug, where the plug enters the engine, for signs of wear.
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