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Home >> Toyota >> 1986 >> 4Runner Base, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Carburetor - AISAN 2-Bbl >> Adjustments >> Idle-Up (Throttle Positioner)

Idle-Up (Throttle Positioner)

Apply vacuum to idle-up diaphragm, insert angle gauge, and measure throttle valve opening. Adjust throttle valve opening angle to 16.5° by turning adjusting screw.

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