FAST IDLE CAM POSITION ADJUSTMENT

• NOTE: If fast idle cam position adjustment is changed, choke unloader and secondary throttle lockout adjustments must also be reset
• Place fast idle speed screw on second highest step of fast idle cam against shoulder of high step
• Apply light pressure on fast idle control lever ot move choke valve towards closed position
• Insert correct gauge (.100") between bottom of choke valve and air horn wall at throttle lever side
• NOTE: Use care not to change choke position during measurement
• If adjustment is needed, bend fast idle connector rod at curved angle until correct gap is obtained

IDLE ENRICHMENT VALVE TEST

• Start engine and warm to normal operating temperature
• Turn engine OFF and remove air cleaner
• Install jumper wire from carburetor idle stop switch to ground
• Connect tachometer to engine
• Disconnect hose to idle enrichment system diaphragm at plastic connector
• NOTE: remove connector from carburetor hose before proceeding
• Start engine
• Place fast idle speed screw on setting (slowest speed) step of fast idle cam
• Attach outside vacuum source to enrichment diaphragm with 3 or 4 feet of hose
• Apply at least 15" Hg and note any engine RPM change
• If speed can be controlled by vacuum, system is working properly