1-Air
2-Screw
3-Cover,
Deflector (2)
(2)
Metering Rod (2)
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.
4-Metering
Rod Assembly (2)
5-Spring,
Metering Rod (2)
Inlet Fitting
Washer
6-Fuel
7-Sealing
8-Screw
9-Linkage
Rod, Choke Pull-Off
10-
11-
12-
13-
14-
15-
16-
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-
44-
45-
46-
47-
48-
49-
50-
51-
Screw
Air Horn (Carburetor Top)
Filter, Fuel Inlet (2)
Gasket (2)
Seat, Fuel Inlet (2)
Needle Valve, Fuel Inlet (2)
Pin (2)
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.
Float (2)
Secondary Venturi Cluster (2)
Baffle Plate, Float Bowl (2)
Screw (4)
Primary Venturi Cluster (2)
Gasket (2)
Jet, Primary Fuel (2)
Screw (2)
Fuel Pump Injector Housing
Gasket
Check-Weight (or Check-Spring, if So Equipped)
Check-Ball
Screw
Diaphragm, Choke Pull-Off
Vacuum Hose
Idle Mixture Screw (2)
Spring, Idle Mixture Screw (2)
Gasket, Carburetor Base
Linkage Rod, Choke Plate
S-Link
Accelerator Pump Lever
Screw
Linkage Rod, Accelerator Pump
Wire Clip
Wire Clip
Gasket
Screw (4)
Gasket (2)
1. Removewirecliptodisconnectacceleratorpump
linkage.
b
a
70390
a - Wire Clip
b - Accelerator Pump Linkage Rod
Jet, Secondary Fuel (2)
Secondary Air Valve and Weight Assembly
Plunger Washer
Plunger Guide
Accelerator Pump
Spring, Accelerator Pump
Float Bowl/Body (Carburetor Bottom)
Index
90-823224--2
796
WEBER 4 BARREL CARBURETOR - 5B-25
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1993, 1994, 1995, 1996, 1997 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(4 votes, average: 4.5 out of 5)
Marine readers have rated 1993 1997 Mercury-MerCruiser GM V8 454 CID 7.4L and 502 CID 8.2L Marine Engines Service Manual Number 16 4.5 out of 5.0 based on 4 product reviews. Hugely helpful service manual! Perfect. Thank you!
Manuals are all Important for Technician
This book is invaluable if you do your own repairs. Great book.
Could not find a copy until a search brought me here.
Excellent print.
Thank you