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Cultivator
Repair Center  Lawn Equipment  Cultivator  Starts, Runs For A While, Then Dies

Cultivator: Starts, Runs For A While, Then Dies

If your cultivator runs for a while then dies, check the following parts: the fuel filter, tank breather, cylinder, and spark plug. We will talk you through these parts and others, and explain why they might have failed. Check the manual related to your model for more specific repair instructions. Our instructions are a general guide.

Carburetors
Carburetors
A plugged or improperly tuned carburetor can cause your cultivator to start up normally, run for a while, and then die. The carburetor’s job is to inject the correct fuel mixture into the engine for combustion. It needs to continue to do this for the entire time the engine is running. When your machine runs for a while then dies, it is usually an indication that the carburetor is either partially clogged or improperly tuned. If you leave fuel in your carburetor for an extended period without using it, this can result in a clog, or even damage to some of the carb’s smaller parts. If your carburetor is clogged, you can attempt to clean it or purchase a carb kit to replace some of the interior carburetor parts. You can also adjust the carburetor if you determine it is improperly tuned, and this is what is causing the symptom....
A plugged or improperly tuned carburetor can cause your cultivator to start up normally, run for a while, and then die. The carburetor’s job is to inject the correct fuel mixture into the engine for combustion. It needs to continue to do this for the entire time the engine is running. When your machine runs for a while then dies, it is usually an indication that the carburetor is either partially clogged or improperly tuned. If you leave fuel in your carburetor for an extended period without using it, this can result in a clog, or even damage to some of the carb’s smaller parts. If your carburetor is clogged, you can attempt to clean it or purchase a carb kit to replace some of the interior carburetor parts. You can also adjust the carburetor if you determine it is improperly tuned, and this is what is causing the symptom. To do this, you will need to ensure the adjustment screws are in the correct position.
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Air Filters
Air Filters
For your cultivator to run smoothly, the air filter must remain clean and undamaged. The air filter prevents dirt and debris from entering the engine when it draws in air. Because air is required for the engine’s combustion process, if the air filter is clogged with dirt or other airborne particles, it may affect your engine’s running ability. This can include the engine running for a while but eventually sputtering out. It is recommended to clean the air filter about once a year, and this should prevent the air filter from becoming clogged. However, if you are using the cultivator a lot, particularly at full throttle, the amount of dirt and debris accumulating on the air filter can be increased, and you may need to clean it. If the air filter is damaged, or too clogged to repair, it may need to be replaced entirely.
For your cultivator to run smoothly, the air filter must remain clean and undamaged. The air filter prevents dirt and debris from entering the engine when it draws in air. Because air is required for the engine’s combustion process, if the air filter is clogged with dirt or other airborne particles, it may affect your engine’s running ability. This can include the engine running for a while but eventually sputtering out. It is recommended to clean the air filter about once a year, and this should prevent the air filter from becoming clogged. However, if you are using the cultivator a lot, particularly at full throttle, the amount of dirt and debris accumulating on the air filter can be increased, and you may need to clean it. If the air filter is damaged, or too clogged to repair, it may need to be replaced entirely.
Cylinders
Cylinders
A worn or damaged piston and cylinder will cause your cultivator to start, run for a while, then die. As your cultivator’s engine runs, heat continues to build. Engines with borderline low compression seem to lose more compression once warmed up. You will sometimes see this problem in engines where the cylinder and piston have been scored due to too little lubrication in the gas or the carb is adjusted too lean. This is one of the reasons it is important to make sure that your carburetor is adjusted properly, before more serious issues like a damaged cylinder/piston arise. When cool, the engine will turn over. Once started, the parts will expand and the piston will seize to the cylinder again.
A worn or damaged piston and cylinder will cause your cultivator to start, run for a while, then die. As your cultivator’s engine runs, heat continues to build. Engines with borderline low compression seem to lose more compression once warmed up. You will sometimes see this problem in engines where the cylinder and piston have been scored due to too little lubrication in the gas or the carb is adjusted too lean. This is one of the reasons it is important to make sure that your carburetor is adjusted properly, before more serious issues like a damaged cylinder/piston arise. When cool, the engine will turn over. Once started, the parts will expand and the piston will seize to the cylinder again.
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