1. Clogged Carburetor: A clogged carburetor can restrict fuel flow and cause the engine to run lean. This can lead to bogging down when the engine is under load.
2. Dirty Air Filter: A dirty air filter can restrict airflow to the engine, causing it to run lean and bog down.
3. Incorrect Fuel Mixture: If the fuel mixture is too lean, the engine will not get enough fuel and will bog down.
4. Spark Plug Issues: A worn or fouled spark plug can cause the engine to misfire and bog down.
5. Fuel Pump Problems: A weak or faulty fuel pump may not be able to deliver enough fuel to the engine, causing it to bog down.
6. Vacuum Leak: A vacuum leak can cause the engine to run lean and bog down.
7. Compression Problems: Low compression can cause the engine to lose power and bog down.