Mercury 125 OptiMax Outboard Motor Manuals

Manuals and User Guides for Mercury 125 OptiMax Outboard Motor. We have 7 Mercury 125 OptiMax Outboard Motor manuals available for free PDF download: Service Manual, Operation Maintenance Warranty Installation Manual, Owner's Manual, Operation And Maintenance Manual, Manual

Mercury 125 OptiMax Service Manual

Mercury 125 OptiMax Service Manual (574 pages)

Brand: Mercury | Category: Outboard Motor | Size: 15 MB

Table of Contents

Important 1 C

14
- Propeller Information
  3
- How to Use this Manual
  3
- Table of Contents
  14
- Serial Number Location
  15
- Conditions Affecting Performance
  15
- Weather
  15
- Boat
  16
- Engine
  16
- Fresh Water Submersion
  17
- Following Complete Submersion
  17
- Salt Water Submersion
  17
- Submerged While Running
  17
- Propeller Selection
  18
- Propeller Installation
  18
- Power Trim System
  19
- General Information
  19
- Power Trim Operation
  19
- Trim "In" Angle Adjustment
  20
- Compression Check
  20
- Painting Procedures
  21
- Cleaning & Painting Aluminum Propellers & Gear Housings
  21
- Decal Application
  22
- Decal Removal
  22
- Instructions for "Wet" Application
  22
Important 1 D

24
Electrical 2

38
Electrical 2

82
Electrical 2

109
- Special Tools
  110
- Specifications
  110
- Timing/Synchronizing/Adjusting (3 Cylinder Models)
  110
- Special Tools
  114
- Specifications
  114
- Throttle Cable Installation
  114
- Timing/Synchronizing/Adjusting (4 Cylinder Models)
  114
- Idle Adjustment
  118
- Throttle Cable Installation
  118
Electrical 2

120
Fuel System

147
- Notes
  148
- Jet 75-90 (3 Cyl.)
  149
- Jet-100-115-125 (4 Cyl.)
  150
- Fuel Pump (65 Jet/75/90)
  151
- Fuel Pump (80 Jet/100/115/125)
  155
- Testing
  157
- Theory of Operation
  157
- Troubleshooting Fuel Pump
  157
- Check Valve Reassembly
  158
- Fuel Pump - Cleaning/Inspection
  158
- Removal
  158
- Reassembly
  159
- Installation of Fuel Pump
  160
Fuel System

162
- Specifications
  163
- WME Carburetor Chart
  163
- Special Tools
  165
- Carburetor (WME-29/30/31/41/46/47/48/49)
  166
- Carburetor-WME-32/32A/33/34/40/40A
  172
- Carburetor-WME-50/51/52/79/80/81
  174
- Fuel System (Linkage)
  178
- Adjustments
  179
- Float Adjustment
  179
- Idle Mixture Screw Adjustment
  179
- Idle Speed Adjustment
  179
- Jet Orifice Size Chart
  180
- Main (High Speed) Jet Adjustment
  180
- High Altitude Jet Chart
  181
- Fuel System Troubleshooting
  182
- General Information
  182
- Problem: Engine Floods
  182
- Problem: Engine Runs too Rich
  182
- Problem: Fuel Blow Back out of Carburetor
  182
- Problem: Rough Idle
  182
- Problem: Engine Turns over but will Not Start or Starts Hard When Cold
  183
- Problem: Unable to Reduce Engine RPM to Slow Idle
  183
- Engine Idles Rough and Stalls -Engine Runs Uneven or Surges -Engine will Not Accelerate
  184
- Problem: Engine Runs too Lean
  184
- Problems
  184
- Inspection
  185
- Description for Four Cylinder Engines
  186
- Description for Three Cylinder Engines
  186
- Enrichener System
  186
- Enrichener Valve Hose Installation - Four Cylinder Engines
  186
- Enrichener Valve Hose Installation - Three Cylinder Engines
  186
- Acceleration Pump Circuit Operation - Four Cylinder Engines
  188
- Four Cylinder Engines
  188
Fuel System

191
- Notes
  192
- Oil Injection Components
  193
- Oil Injection Components (S/N-USA-0G301751/BEL-9885505
  193
- Description
  197
- Hose Connections
  197
- Oil Pump Drive System
  197
- And 4 Cylinder Oil Flow Diagram
  198
- Carburetor/Oil Pump Synchronization
  199
- Filling Oil Tank
  199
- Bleeding Air from Oil Injection System
  200
- Bleeding Air from Oil Pump Inlet Hose
  200
- Bleeding Air from Oil Pump Outlet Hose
  200
- Oil Pump Test
  200
- Low Oil Sensor Test
  201
- Warning Horn System
  201
- (Models with Warning Module)
  202
- Oil Injection System Troubleshooting Chart
  202
- Troubleshooting Chart
  202
- Troubleshooting the Oil Injection System
  202
Table of Contents

204
- Carbon Monoxide - CO
  205
- Controlling Emissions
  205
- Exhaust Emissions Standards
  205
- Hydrocarbons - HC
  205
- Oxides of Nitrogen - Nox
  205
- Stoichiometric (14.7:1) Air/Fuel Ratio
  205
- What Are Emissions
  205
- Outboard Hydrocarbon Emissions Reductions
  206
- Homogenized Charge
  207
- Stratified Charge
  207
- Stratified Vs Homogenized Charge
  207
- Dealer Responsibility
  208
- Emissions Information
  208
- EPA Emission Regulations
  208
- Manufacturer's Responsibility
  208
- Owner Responsibility
  208
- Decal Location for 1998 Models
  210
Powerhead

212
- Specifications
  213
- General Information
  214
- Tools for Powerhead Repair
  214
- Notes
  215
- Crankshaft, Pistons and Connecting Rods (3 Cyl.)
  216
- Cylinder Block (3 Cyl.) (USA-0G127499/BEL-9836632 & BELOW)
  218
- Cylinder Block (3 Cyl.) (USA-0G127500/BEL-9836633 & UP)
  222
- Induction Manifold and Reed Block (3 Cyl.)
  226
- Crankshaft, Pistons and Connecting Rods (4 Cyl.)
  228
- Cylinder Block and Crankcase (80 Jet/100/115/125)
  230
- Induction Manifold and Reed Block (80 Jet/100/115/125)
  234
- Throttle Lever and Linkage (65 Jet/75/90 Models)
  236
- Throttle Lever (Models 80Jet/100/115/125)
  238
- Powerhead Removal
  241
- Flywheel Removal
  246
- Powerhead Disassembly
  247
- Cleaning and Inspection
  252
- Cylinder Block and Crankcase Cover
  252
- Check Valves
  254
- Piston and Piston Rings
  254
- Connecting Rods
  256
- Crankshaft
  256
- Cylinder Cover, Exhaust Divider Plate and Exhaust Cover
  257
- Thermostat
  257
- Reed Blocks
  258
- Temperature Switch Test
  258
- General Information
  259
- Powerhead Reassembly and Installation
  259
- Assembling Rod to Piston
  260
- End Cap
  260
- Piston Ring Installation
  261
- Crankshaft Installation
  263
- Connecting Rod Cap Alignment
  266
- Crankcase Cover to Block
  267
- Cylinder Block Cover
  268
- Exhaust Plate Cover and Exhaust Divider Plate
  269
- Intake Manifold and Reed Block Installation
  271
- Accelerator Pump Installation (4 Cylinder Models)
  272
- Cylinder Bleed Hose Routing
  273
- Cylinder Bleed Hose Routing (1995 and Prior)
  274
- Cylinder Bleed Hose Routing (1996 and Newer)
  275
- Cylinder Fuel Enrichment/Accelerator Pump Hose Routing
  276
- And Newer 3 Cylinder Harness Routing (Without Oil Reservoir Installed)
  277
- And Newer 3 Cylinder Harness Routing (with Oil Reservoir Installed)
  278
- Cylinder Manual Start Harness Routing
  279
- And Newer 4 Cylinder Harness Routing
  281
- And Newer 4 Cylinder Harness Routing (with Oil Reservoir Installed)
  281
- Ignition Plate Installation
  282
- Trigger and Stator Installation
  283
- Stator Installation
  284
- Carburetor Installation
  286
- Temperature Sensor Installation
  286
- Flywheel Installation
  288
- Oil Reservoir Installation
  288
- Air Box Installation
  289
- Powerhead to Driveshaft Housing
  290
- Reinstall Bottom Cowl
  291

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Mercury 125 OptiMax Operation And Maintenance Manual

Mercury 125 OptiMax Operation And Maintenance Manual (96 pages)

Brand: Mercury | Category: Outboard Motor | Size: 1 MB

Table of Contents

Mercury 125 OptiMax Operation And Maintenance Manual

Mercury 125 OptiMax Operation And Maintenance Manual (93 pages)

Brand: Mercury | Category: Outboard Motor | Size: 1 MB

Table of Contents

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Mercury 125 OptiMax Manual

Mercury 125 OptiMax Manual (89 pages)

Brand: Mercury | Category: Outboard Motor | Size: 1 MB

Table of Contents

Mercury 125 OptiMax Operation Maintenance Warranty Installation Manual

Mercury 125 OptiMax Operation Maintenance Warranty Installation Manual (159 pages)

Brand: Mercury | Category: Outboard Motor | Size: 7 MB

Table of Contents

Mercury 125 OptiMax Owner's Manual

Mercury 125 OptiMax Owner's Manual (133 pages)

Brand: Mercury | Category: Outboard Motor | Size: 5 MB

Table of Contents

Table of Contents
7
Transfer of Warranty
11
Warranty Registration United States and Canada
11
Warranty Information
11
Warranty Registration Outside the United States and Canada
12
Optimax Outboard Limited Warranty United States, Canada, Europe, Confederation of Independent States, Middle-East and Africa
13
Year Limited Warranty against Corrosion
16
Warranty Coverage and Exclusions
20
Boater's Responsibilities
23
Before Operating Your Outboard
23
General Information
23
Boat Horsepower Capacity
24
High-Speed and High-Performance Boat Operation
24
Propeller Selection
25
Outboard Remote Control Models
28
Remote Steering Notice
28
Lanyard Stop Switch
29
Protecting People in the Water
33
Passenger Safety Message - Pontoon Boats and Deck Boats
34
Wave and Wake Jumping
35
Impact with Underwater Hazards
36
Exhaust Emissions
38
Selecting Accessories for Your Outboard
40
Safe Boating Suggestions
40
Recording Serial Number
42
Specifications
43
Component Identification
44
Transporting
45
Trailering Boat/Outboard
45
Fuel Recommendations
46
Fuel and Oil
46
Fuel Requirements
48
Fuel Additives
48
Avoiding Fuel Flow Restriction
48
Low Permeation Fuel Hose Requirement
48
Oil Recommendation
48
Filling Oil Injection System
49
Filling Fuel Tank
51
Remote Control Features
53
Features and Controls
53
Warning System
54
Power Trim and Tilt
57
Trim Tab Adjustment
61
Pre-Starting Check List
62
Operating in Freezing Temperatures
62
Operation
62
Operating in Saltwater or Polluted Water
63
Operating at High Elevations
63
Setting Trim Angle While Running Engine at Idle Speed
64
Engine Break-In Procedure
64
Starting the Engine
65
Gear Shifting
68
Stopping the Engine
69
Outboard Care
70
EPA Emissions
71
Inspection and Maintenance Schedule
72
Flushing the Cooling System
74
Top Cowl Removal and Installation
75
Cleaning Care for Top Cowl
76

Mercury 125 OptiMax Manual

Mercury 125 OptiMax Manual (32 pages)

Brand: Mercury | Category: Outboard Motor | Size: 0 MB

Table of Contents

Table of Contents
7
Warranty Information

8
General Information

13
Installation

17
- Installing Outboard
  17
- Propeller Selection
  17
Transporting

17
- Trailering Boat/Outboard
  17
Fuel & Oil

17
- Gasoline Recommendations
  17
- Oil Recommendation
  18
- New Engine Gasoline/Oil Break-In Mixture
  18
- Mixing Gasoline and Oil
  18
- Filling Oil Injection System
  18
- Filling Fuel Tank
  18
Features & Controls

18
Operation

22
- Pre-Starting Check List
  22
- Operating in Freezing Temperatures
  22
- Operating in Salt Water or Polluted Water
  22
- Operating at High Elevations
  22
- Engine Break-In Procedure
  22
- Starting the Engine
  22
- Gear Shifting
  23
- Stopping the Engine
  23
- Emergency Starting
  23

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