CHECK THESE LAST:

17. FAULTY IGNITION COIL
Have ignition coil professionally replaced.

18. AUTOMATIC CHOKE STUCK OPEN
Clean automatic choke.

19. CARBURETOR ICING; CONFIRMED IF ENGINE RUNS ROUGH ON RESTART
Ensure air intake preheat stove, valve and duct are functioning properly.

20. INCORRECT DWELL ANGLE OR POINT GAP
Have dwell angle or point gap professionally adjusted.

21. POOR QUALITY OR CONTAMINATED FUEL
Use higher quality fuel.

22. FAULTY FUEL PUMP OR FUEL PRESSURE REGULATOR
Have fuel pump or fuel pressure regulator professionally replaced.

23. LEAKING MECHANICAL FUEL PUMP DIAPHRAGM
Have fuel pump professionally replaced.