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MANUFACTURER'S NUMBER.
CARBERUTOR IDENTIFICATION
MEASURE FROM TOP OF
CHOKE VALVE WALL TO
3
TOP OF PUMP STEM.
TO ADJUST SUPPORT
PUMP LEVER ON PUMP
END AND BEND LEVER ON
PUMP ROD SIDE.
BACK OUT THROTTLE STOP
SCREW THROTTLE VALVES
HELD CLOSED.
ACCEL. PUMP ROD ADJUSTMENT
TO ADJUST LOOSEN ALLEN LOCK SCREW. AIR VALVE HELD CLOSED. TURN ADJUSTING SCREW
CLOCKWISE UNTIL TORSION SPRING CONTACTS PIN ON AIR VALVE SHAFT. THEN TURN
ADDITIONAL SPECIFIED TURNS AND TIGHTEN ALLEN LOCK SCREW.
(ADJUSTMENT SPECIFICATIONS TABLE)
SPRING ADJUSTING
SCREW.
ALLEN LOCK SCREW.
AIR VALVE SPRING ADJUSTMENT
CAUTION:
PLACE
CARBURETOR
HOLDING FIXTURE SO THAT IT WILL
REMAIN IN SAME POSITION WHEN GAUGE
IS USED.
1. ROTATE DEGREE SCALE UNTIL ( 0 ) IS
OPPOSITE POINTER
2. CHOKE VALVE HELD COMPLETELY
CLOSED. PLACE MAGNET SQUARELY
ON TOP OF CHOKE VALVE.
3. ROTATE BUBBLE UNTIL IT IS
CENTERED.
4. ROTATE SCALE SO THAT DEGREE
SPECIFIED FOR ADJUSTMENT IS
OPPOSITE POINTER.
5. FOLLOW NUMERICAL OUTLINE IN
MAKING ADJUSTMENT, INSTEAD OF
MEASURING GAP AT EDGE OF CHOKE
VALVE. MAKE ADJUSTMENT TO BRING
BUBBLE BACK TO CENTER POSITION.
ANGLE GAUGE METHOD
©2002 Edelbrock Corporation
Brochure No. 63-0149
ALUMINUM TAG
WITH EDELBROCK'S
MODEL NUMBER.
INSTALL PUMP ROD
1
IN PROPER HOLE.
INNER.
OUTER.
4
2
AIR VALVE SHAFT.
ON
3
1
2
GAUGE: J-26701 KENT MOORE TOOL
BT-7704 BORROUGHS TOOL
PRESS DOWN GENTLY
ON FLOAT TANG UNTIL
SEATED ON NEEDLE.
TO ADJUST, BEND
4
FLOAT UP OR DOWN.
Fig. 1
VENT VALVE COVER AND SPRING
REMOVED, CHOKE OPEN POSITION,
FAST IDLE CAM FREE.
1
GAUGE IN PLACE,
VENT VALVE SHOULD
BE CLOSED, GAUGE
4
REMOVED, VENT
VALVE SHOULD BE
OPEN.
BACK OUT THROTTLE STOP SCREW.
THROTTLE VALVES COMPLETELY
CLOSED. TURN THROTTLE STOP SCREW
IN UNTIL IT CONTACTS TANG ON
THROTTLE LEVER. THEN TURN SCREW
IN 1 1/2 TURNS.
Fig. 3
TO ADJUST
BEND ROD.
INSERT .120" GAUGE IN HOLE.
LOWER EDGE OF LEVER SHOULD
JUST TOUCH GAUGE.
Fig. 5
4
1
PLACE CAM FOLLOWER
ON SECOND STEP OF
FAST IDLE CAM NEXT
TO HIGH STEP.
FAST IDLE CAM (CHOKE ROD) ADJUSTMENT
Fig. 7
Page 2 of 4
HOLD FLOAT HINGE
1
PIN FIRMLY IN PLACE.
2
BOWL COVER GASKET REMOVED
3
MEASURE FROM TOP OF CASTING
TO TOP OF FLOAT 3/16" IN
FROM TOE OF FLOAT.
CAUTION : DO NOT EXERT
PRESSURE ON RESILIENT
NEEDLE VALVE.
DRY FLOAT LEVEL ADJUSTMENT
TO ADJUST, REMOVE PLUG AND
TURN HEX SCREW. REPLACE PLUG
AFTER ADJUSTMENT.
5
2
BOWL VENT VALVE ADJUSTMENT
3
PUSH UP ON CHOKE COIL LEVER
1
UNTIL CHOKE VALVE IS CLOSED.
2
CHOKE COIL LEVER ADJUSTMENT
TO ADJUST,
BEND TANG ON
FAST IDLE CAM
4
Fig. 2
PLACE .075" GAUGE
BETWEEN IDLE STOP
SCREW AND THROTTLE
LEVER TANG.
3
Fig. 4
Fig. 6
PUSH UPWARD ON
3
CHOKE COIL LEVER,
MOVING CHOKE TOWARD
CLOSED POSITION UNTIL
STOP IS MADE.
( BUBBLE ON ANGLE
GAUGE SHOULD BE
CENTERED.)
2
FOLLOW GAUGE SET
PROCEDURE FIG.7
Fig. 8
Rev. 10/02
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