ChaDter 4 Fuel and exhaust systems
4-33
16.18 An exploded view of the mixing body
and throttle body assemblies (1985 throunh
1987 iBC carburetbr) -
1 Steelball ’
2 Weight
.
3 Ball
4 Plug >X
5 O-ring
,.t
6 Ball
76 Screw
8
9
10
11
12
13
14
15
76
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
Gasket ’
Primary main jet
Secondary
main jet
Cover
Spring
Diaphragm
Enrichment j& valve
Enrichment jet
Spring
Ball
Pump cover assembly
Diaphragm
Spring
Pump body
Gasket
Vacuuni hose
Auxiliary accelerator
pump cover
Spring
Diaphragm
Check valve
Vacuum hose
Depression chamber (dashpot)
Mixing body
Throttle Position Sensor (TPS)
Throttle lever
Cam follower
Fast-idle adjustment screw
Free lever
Throttle linkage adjustment plate
Idle-speed ao@stment screw (SAS-2)
Spring
Secondary lever
Idle-speed adjustment screw (SAS-I) “,g ”
Concealmentplug
Mixture-adjustment screw (MA-$)
Throttle body
.,i
.
16.21 Remove the primary main jet and the secondary
main jet with a small screwdriver-make sure the
screwdriver tip fits snugly to prevent damage to the
slots in the jets
16.23 Remove the enrichment jet valve - again, use a
screwdriver with a tip size that just fits into the cross
slots in the head of the valve
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