Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Oldsmobile >> 1990 >> Custom Cruiser >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Remove/Install/Overhaul >> Adjustments (Carburetor) >> Air Valve Spring

Air Valve Spring

  1. Loosen shaft lock screw using Allen wrench. Rotate spring fulcrum pin counterclockwise until throttle valves open. See Fig 1 .
  2. Rotate spring fulcrum pin clockwise until throttle valves close. Then rotate spring fulcrum pin proper amount of revolutions. See E4MC CARBURETOR SPECIFICATIONS  table.
  3. Hold spring fulcrum pin and tighten lock screw. Apply a light coat of grease to spring contact area.
Fig 1: Adjusting Air Valve Spring
G54289Courtesy of GENERAL MOTORS CORP.
scientia non olet · About Mike's Workshop Manuals