Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Have you attempted a carb clean and rebuild? Sounds like a jet it getting clogged or too much pressure build up. when it starts to act up, open fuel tank and see if it clears up. To test ignition coils during an episode, you will need to pull each plug while its doing it, and see if it continues to run on just the opposite cylinder. Let me know if I can be of more assistance. The fuel solenoid could be acting up after a period of time, you can either replace it, or cut the needle off inside to eliminate this issue.