- Empty or contaminated fuel
- Clogged fuel filter
- Faulty fuel pump
Spark plug issues
- Worn out or damaged spark plug
- Incorrect gap on the spark plug
- Faulty spark plug wire
Electrical issues
- Loose or corroded battery terminals
- Faulty ignition switch
- Bad wiring
Air flow restriction
- Clogged air filter
- Blocked carburetor
- Restricted fuel line
Mechanical issues
- Worn out piston rings
- Bad valves
- Incorrect ignition timing
