- Ensure the fuel tank has enough gas.
- Clean the fuel filter if it's clogged.
- Check the fuel lines for leaks or blockages.
- Make sure the carburetor is clean and properly adjusted.
Check the air filter:
- A dirty air filter can restrict airflow to the engine, causing it to run poorly.
- Clean or replace the air filter if it's clogged.
Check the spark plug:
- A worn or dirty spark plug can prevent the engine from starting or running properly.
- Remove the spark plug and check the condition of the electrode. If it's worn or dirty, replace the spark plug.
Check the ignition system:
- A faulty ignition system can also prevent the engine from starting or running properly.
- Check the ignition coil and spark plug wires for any damage or corrosion.
- Make sure the ignition timing is correct.
Check the compression:
- Low compression can cause the engine to run poorly.
- Remove the spark plug and insert a compression tester into the cylinder head.
- Crank the engine and note the compression reading. If it's below the manufacturer's specification, the engine may need to be rebuilt.
Check the governor:
- A faulty governor can prevent the engine from running at the correct speed.
- Inspect the governor linkage and make sure it's moving freely.
- Adjust the governor if necessary.
Check the drive belt:
- A worn or loose drive belt can prevent the engine from driving the wheels.
- Inspect the drive belt and make sure it's in good condition and properly tensioned.
