How to Troubleshoot a Toro Snow Thrower 2400

Check the oil. The number one thing that should be done before starting any small engine is a check of the oil level. This can lead to more problems if it is low. If it is below the proper, level top it off or replace with the manufacturer's recommended oil.

Check the fuel level. This is the most common reason that small engines will not start. If they sit over the summer, the fuel sometimes will evaporate away. Fill the tank.

Check the spark plug. First, examine if the spark plug is connected. This will be on the rear of the snow-thrower and will have a heavy rubber cap on it. See if the cap is on. If it is not, on place the cap on the spark plug and try to start. If it does not start, replace the spark plug by removing it with a spark plug socket and put a new one in.

Check the air filter. If the motor still is not starting, replace the air filter. You will have to remove some of the housing in the rear for this and this will require the ratchet.

Remove the housing around the engine and check the fuel filter to make sure it is not clogged. It will be exposed on the fuel line usually running from the bottom of the tank. It is metal and about an inch in diameter.

Turn off the snow thrower immediately if the blades are not rotating or you hear a grinding sound when you engage the snow thrower. This is a sign of a deeper problem. Something is wrong with engaging mechanism. This will require professional maintenance.

Listen for knocking sounds out of the engine. If you hear a loud rhythmic pinging sound, you are having trouble with the piston and cylinder. This may point to an issue with the rings or the rod on the piston. If you are seeing thick black smoke, shut the machine down and consult a professional. Any more operation will cause severe damage to the engine.