GMC 1976 ZEO 6083 Maintenance Manual page 367

Figure 3 1-"-Carburetor Adjustments
ENGINE FUEL SYSTEM 6M- 25
15
SECONDARY CLOSING
.020"
16
DOWNSHIFT SWITCH
ADJUSTMENT
15
1 . CHOKE FULLY OPEN AND FAST IDLE CAM FOLLOWER
.: 3
OFF STEPS OF FAST IDLE CAM .
- .
2 . SLOW IDLE PROPERLY SET .
3 . MAKE SURE THROTTLE LEVER TANG IS AGAINST
2
'
SECONDARY THROTTLE ROD OPERATING LEVER
AS SHOWN IN 3 .
4. GAUGE BETWEEN ROD AND END OF SLOT AS
4
_
SHOWN IN 4 . SEE SPECIFICATION ABOVE .
"1
5 . TO ADJUST OPEN THROTTLE SLIGHTLY AND BEND
TANG WITH J-5197 AS SHOWN .
-
SECONDARY CLOSING ADJUSTMENT
(ON VEHICLE)
16
ACCELERATOR CABLE
DOWNSHIFT SWITCH
/
0
. ,
J
'4'~~n `~
SWITCH ADJUSTMENT PROCED UR E
` _ AFTER INSTALLING SWITCH
PRESS PLUNGER AS FAR
FORWARD AS POSSIBLE .
THIS PRESETS SWITCH FOR
ADJUSTMENT . SWITCH WILL
ADJUST ITSELF PROPERLY
'
PEDAL (IDLE POSITION)
' " WHEN PEDAL IS DEPRESSED
TO FULL THROTTLE .
O
A-4351