1979 Models

Loosen lock nut and back off adjusting screw from lock lever. Close throttle valve completely and turn screw in gradually until it just touches throttle lock lever. Then turn adjusting screw "A" an additional 1/8-3/8 turn. Tighten lock nut. Throttle valve clearance should be 1 degree. See Fig 2.

Fig 1: Choke Valve Opening Ambient Temperature Chart

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Fig 2: Primary Throttle Valve Initial Opening Angle Adjustment

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