LEMON Manuals: Even more car manuals for everyone
Home >> Mazda >> 1978 >> Cosmo Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> Tune-Up >> Tune-Up Procedures - Rotary >> Idle Speed & Mixture >> 1975-76 Models

1975-76 Models

  1. Disconnect and plug idle compensator hose. Adjust idle speed to 700 RPM using the air adjusting screw. Connect exhaust gas analyzer to exhaust pipe.
  2. Turn mixture adjusting screw clockwise until engine runs erratically. Turn mixture screw counterclockwise until CO% level reaches 0.1 percent, then turn screw another 1/4 turn counterclockwise.
  3. If idle speed changed during mixture adjustment, readjust idle speed with the air adjusting screw and then repeat procedure for CO% level adjustment.
scientia non olet · About LEMON Manuals