Small Engines

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Across
  1. 2. when the air-fuel mixture enters the cylinder
  2. 5. fuel used for large scale transportation, referenced in new taylor swift song
  3. 8. the final stoke in the 4-stroke cycle
  4. 10. the mathematical expression for how small the air-fuel gets during the compression stroke
  5. 11. this part spins and generates an electromagnetic force
  6. 12. this part mixes air and fuel
Down
  1. 1. 4-stroke engines have two types of these
  2. 3. this foam or paper part filters out airborne contaminants
  3. 4. this part is present only in 2-stroke engines
  4. 6. thin pieces of metal used to absorb shock and seal metal on metal
  5. 7. fossil fuel used to power most small engines and many passenger vehicles
  6. 9. the burning of the fuel/air mixture in the cylinder