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Fuel/Air

Fuel/Air. Exhaust. Combustion of Fuel/Air Increases Pressure Ports are Closed. Fuel/Air. Exhaust. Piston Starts Downward Crankcase Pressure Rises Fuel/Air Forced Upward. Fuel/Air. Exhaust. Piston Continues Down Fuel/Air Continues Upward Ports Start to Open. Fuel/Air. Exhaust.

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Fuel/Air

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  1. Fuel/Air Exhaust Combustion of Fuel/Air Increases Pressure Ports are Closed

  2. Fuel/Air Exhaust Piston Starts Downward Crankcase Pressure Rises Fuel/Air Forced Upward

  3. Fuel/Air Exhaust Piston Continues Down Fuel/Air Continues Upward Ports Start to Open

  4. Fuel/Air Exhaust Cylinder Press. Starts to Drop Exhaust Press. Pushes Fuel/Air out of Expansion Chamber

  5. Fuel/Air Exhaust Fuel/Air Enters Cylinder from Exhaust

  6. Fuel/Air Exhaust Fuel/Air from Exhaust Starts to Burn Fuel/Air Enters Cylinder from Crankcase

  7. Fuel/Air Exhaust Fuel/Air from Exhaust Burns Resulting in Additional Expansion

  8. Fuel/Air Exhaust Intake Fuel/Air Begins to Push Exhaust Out

  9. Fuel/Air Exhaust Fuel/Air Pushes Exhaust Out

  10. Fuel/Air Exhaust Fuel/Air Pushes Exhaust Out

  11. Fuel/Air Exhaust Fuel/Air Pushes Exhaust Out

  12. Fuel/Air Exhaust Fuel/Air Pushes Exhaust Out

  13. Fuel/Air Exhaust Piston Starts Upward Fuel/Air is Pulled in from Carburetor Piston Pushes Exhaust Out

  14. Fuel/Air Exhaust Fuel/Air Continues to Enter Crankcase Some Fuel/Air Starts to Escape Cylinder

  15. Fuel/Air Exhaust Fuel/Air Continues to Enter Crankcase Some Fuel/Air Escapes into Exhaust

  16. Fuel/Air Exhaust Fuel/Air Continues to Enter Crankcase

  17. Fuel/Air Exhaust Fuel/Air Continues to Enter Crankcase

  18. Fuel/Air Exhaust Fuel/Air Continues to Enter Crankcase

  19. Fuel/Air Exhaust Fuel/Air Continues to Enter Crankcase

  20. Fuel/Air Exhaust Ports Begin to Close

  21. Fuel/Air Exhaust Combustion Chamber Press. Increases

  22. Fuel/Air Exhaust Combustion Chamber Press. Increases Ports are Closed Electronic Spark is Initiated Slightly Before the Piston Reaches Top

  23. Fuel/Air Exhaust Flame, due to Ignition, Propagates, Increasing Pressure in Combustion Chamber

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