Adjusting Fast Idle Cam - Throttle Opening Angle

Set fast idle cam on second highest step. Measure clearance between primary throttle valve and throttle bore. See Fig 1 . If clearance is not .033-.041" (.84-1.04 mm), rotate fast idle adjusting screw as necessary.

Fig 1: Adjusting Fast Idle Cam (Throttle Opening Angle)

Courtesy of MAZDA MOTORS CORP.