Practice question

In a carburettor, what is the general function of the main jet?

  1. To meter (control) the amount of fuel drawn into the airstream at higher throttle openings
  2. To filter incoming air
  3. To ignite the air-fuel mixture
  4. To measure engine oil level

Answer: A — To meter (control) the amount of fuel drawn into the airstream at higher throttle openings

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