1. Check for clogged fuel lines and check the fuel filter for blockages.
2. Check the air intake for any foreign objects or debris that could be blocking air from entering the engine.
3. Check the timing and adjust as necessary.
4. Check the engine oil level and refill if necessary.
5. Inspect all engine hoses for any leaks or blockages.
6. Check the fuel injectors and replace if necessary.
7. Replace the spark plugs if they are worn or fouled.
8. Check the fuel pump and its pressure settings.
9. Check the carburetor and adjust the settings if necessary.
10. Make sure the throttle linkage is operating correctly.