SERVICE MANUAL NUMBER 26
MERCARB 2 BARREL CARBURETOR
FUEL SYSTEM
Section 5B - MERCARB 2 BARREL CARBURETOR
Table of Contents
Identification . . . . . . . . . . . . . . . . . . . . . . . . . . 5B-2
Replacement Parts Warning . . . . . . . . . . . . 5B-3
Torque Specifications . . . . . . . . . . . . . . . . . . 5B-3
Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5B-3
Special Tools . . . . . . . . . . . . . . . . . . . . . . . 5B-3
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 5B-4
Carburetor Adjustment Specifications . 5B-4
High Altitude Re-Jetting . . . . . . . . . . . . . 5B-5
Important Service Information . . . . . . . . . . . 5B-5
Flooding at Idle RPM . . . . . . . . . . . . . . . . 5B-5
Needle/Seat Change . . . . . . . . . . . . . . . . 5B-6
Adjustable Accelerator Pump Lever . . . 5B-6
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . 5B-7
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . 5B-7
Fuel Supply Connections . . . . . . . . . . . . 5B-7
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . 5B-8
Flame Arrestor with Carburetor Cover . 5B-8
Fuel Inlet Filter . . . . . . . . . . . . . . . . . . . . . 5B-9
Choke Inspection . . . . . . . . . . . . . . . . . . 5B-10
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . 5B-10
Pump Rod . . . . . . . . . . . . . . . . . . . . . . . . 5B-10
Choke Setting . . . . . . . . . . . . . . . . . . . . . 5B-12
Preliminary Idle Speed and Mixture . . 5B-12
Final Idle Speed and Mixture . . . . . . . . 5B-13
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5B-15
Removal . . . . . . . . . . . . . . . . . . . . . . . . . 5B-15
Installation . . . . . . . . . . . . . . . . . . . . . . . . 5B-15
Exploded View Parts List . . . . . . . . . . . 5B-17
Disassembly . . . . . . . . . . . . . . . . . . . . . . 5B-18
Cleaning and Inspection . . . . . . . . . . . . 5B-25
Reassembly . . . . . . . . . . . . . . . . . . . . . . 5B-26
5
B
90-861329--1
MARCH 1999
Page 5B-1
INDEX
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 181 CID |
| Model Year | 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(6 votes, average: 5 out of 5)
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Need help to install automate choke
Need help to instal automate choke