Official Snapper gas lawn mower parts

Common replacement parts for Snapper gas walk-behind lawn mowers

• Sparkplug. The sparkplug ignites the fuel mixture inside the engine cylinder to drive the crankshaft.
• Flywheel key. The flywheel key joins the flywheel to the crankshaft and the flywheel key shears off to protect the engine if the mower blade hits an immovable object such as a rock or tree stump.
• Cutting blade. The cutting blade spins below the mower deck to cut the grass.
• Air filter. The air filter traps dust and contaminants from air entering the carburetor.

Troubleshooting tips for your Snapper gas walk-behind lawn mower when it won't start

When you can't start your mower, make sure the tank has fuel and that the fuel is fresh; stale fuel can become watery and won't ignite well. Tune up the mower's engine to give it the best chance of starting. Check the spark plug and replace it if it's covered with oil or other deposits.

If your mower uses a battery, charge or replace the battery if it won't power the starter to spin the engine. If you have to pull the starter rope to start the engine, replace the recoil starter if it doesn't spin the engine when you pull the rope. Replace the starter rope if it's broken. For additional help, watch our can't pull the recoil starter rope video.

Replace the safety switch or the ignition coil if the spark plug isn't getting current through the ignition system. The engine won't start if you hit a rock or stump and shear off the flywheel key, so replace the flywheel key if it's broken.

Carburetor problems often prevent a mower engine from starting. Replace or rebuild the carburetor if it's clogged.