Idle Speed and Mixture Adjustment in Engines
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Questions and Answers

When should IDLE SPEED AND MIXTURE ADJUSTMENT be accomplished?

  • After the engine has been warmed up (correct)
  • When the engine is cold and idle
  • Before the engine has been warmed up
  • During the engine's break-in period

    • Why might it be necessary to readjust idle RPM after setting the idle mixture correctly?

  • Because idle RPM is directly proportional to engine temperature
  • Because idle mixture adjustment affects idle RPM (correct)
  • Because idle RPM affects fuel efficiency
  • Because idle mixture is inversely proportional to engine temperature

    • What is the primary goal of adjusting the idle mixture?

  • To set the correct idle RPM
  • To optimize fuel efficiency (correct)
  • To decrease engine noise
  • To increase engine power

    • What should be done before making idle speed and mixture adjustments?

    <p>Warm up the engine</p> Signup and view all the answers

    Why is it important to perform idle speed and mixture adjustments?

    <p>To optimize engine efficiency during idle operation</p> Signup and view all the answers

    Study Notes

    Idle Speed and Mixture Adjustment

    • Idle speed and mixture adjustment should only be done after the engine has warmed up.
    • Idle RPM may be affected byidle mixture adjustment, so it may be necessary to readjust idle RPM after setting the correct idle mixture.

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    Description

    Learn how to adjust idle speed and mixture in an engine after it has warmed up, considering the impact of idle mixture adjustment on idle RPM.

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