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Home >> Chevrolet >> 1968 >> Chevy II 2.5L Eng >> Repair and Diagnosis (Single Page) >> Engine Performance >> Tune-Up >> Exhaust Emission Systems - Tune-Up >> Idle Speed & Mixture Adjustment >> Final Curb Idle Speed Adjustment >> 2-Bbl. & 4-Bbl. Carburetors, All except Vega (1973)

2-Bbl. & 4-Bbl. Carburetors, All except Vega (1973)

  1. With engine running, disconnect idle stop solenoid wire. Adjust carburetor low idle, using adjustment screw on low step of cam, to specified RPM.
  2. Set dwell and timing and recheck low idle speed RPM. Reconnect solenoid wire. Open throttle momentarily (plunger should extend) and adjust solenoid plunger screw to specified curb idle speed RPM.
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