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Mercury 305 CID - Page 517

Mercury 305 CID
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90-823225--1 1096 WEBER 4 BARREL CARBURETOR - 5D-19
1-Air Deflector (2)
2-Screw (2)
3-Cover, Metering Rod (2)
4-Metering Rod Assembly (2)
5-Spring, Metering Rod (2)
6-Fuel Inlet Fitting
7-Sealing Washer
8-Screw
9-Linkage Rod, Choke Pull-Off
10- Screw
11- Air Horn (Carburetor Top)
12- Filter, Fuel Inlet (2)
13- Gasket (2)
14- Seat, Fuel Inlet (2)
15- Needle Valve, Fuel Inlet (2)
16- Pin (2)
17- Float (2)
18- Secondary Venturi Cluster (2)
19- Baffle Plate, Float Bowl (2)
20- Screw (4)
21- Primary Venturi Cluster (2)
22- Gasket (2)
23- Jet, Primary Fuel (2)
24- Screw (2)
25- Fuel Pump Injector Housing
26- Gasket
27- Check-Weight (or Check-Spring, if So Equipped)
28- Check-Ball
29- Screw
30- Diaphragm, Choke Pull-Off
31- Vacuum Hose
32- Idle Mixture Screw (2)
33- Spring, Idle Mixture Screw (2)
34- Gasket, Carburetor Base
35- Linkage Rod, Choke Plate
36- S-Link
37- Accelerator Pump Lever
38- Screw
39- Linkage Rod, Accelerator Pump
40- Wire Clip
41- Wire Clip
42- Gasket
43- Screw (4)
44- Gasket (2)
45- Jet, Secondary Fuel (2)
46- Secondary Air Valve and Weight Assembly
47- Plunger Washer
48- Plunger Guide
49- Accelerator Pump
50- Spring, Accelerator Pump
51- Float Bowl/Body (Carburetor Bottom)
Disassembly
The following is a step-by-step procedure for com-
pletely overhauling carburetor after removal from en-
gine. In many cases, however, complete overhaul is
not necessary and, in these cases, only the steps re-
quired to repair the carburetor malfunction should be
performed. Read the instructions carefully to prevent
doing unnecessary steps.
IMPORTANT: Before performing any service on
carburetor, it is essential that carburetor be
placed in a holding fixture to prevent possible
damage to throttle valves.
1. Remove wire clip to disconnect accelerator pump
linkage.
70390
b
a
a - Wire Clip
b - Accelerator Pump Linkage Rod

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