🏷️ Basic Information

Make:

Mercury

Model:

Jet Outboard

Power Range Hp:

100-140 HP (also covers 60, 65, 75, 80, 100, 125, 135, 140, 200, 225, 250 DFI)

Generation:

Multiple (specific serial number ranges indicated for certain sections)

📋 Manual Details

Manual Type:

Service Manual / Workshop Manual

Language:

English

Format:

PDF Download

Total Sections:

Numerous (as indicated by the detailed index)

⚙️ Engine Specifications

Engine Type:

Outboard Jet

Ignition Systems:

Capacitor Discharge Ignition (CDI), Alternator Driven Ignition (Mechanical Advance and other variations), Digital Inductive Ignition (DI)

Fuel Systems:

Carbureted, Electronic Fuel Injection (EFI), Direct Fuel Injection (DFI)

Power Head Maintenance:

Includes disassembly, assembly, cleaning, inspection, fasteners, torque, lubricants, sealants, and adhesives.

🔧 Transmission

Component:

Lower Gearcase and Jet Drive Units

Maintenance:

Includes bearing housing, corrosion control, gear ratio, cleaning, inspection, disassembly, assembly, lubrication, operation, pressure testing, shimming, and high-altitude operation.

Component:

Jet Pump Unit

Maintenance:

Includes maintenance and service procedures.

🛡️ Safety Features

Context:

General safety precautions for servicing and troubleshooting.

🔧 Maintenance

Procedures:

Comprehensive tune-up procedures including lubrication, anti-corrosion maintenance, cooling system flushing, engine submersion, and off-season storage.

Components:

Carburetors (WME, WMH, WMV, WO/Mercarb series), fuel filters, fuel pump, fuel lines, primer bulbs, fuel tanks, and reed valve service.

Scope:

Detailed lubrication guidelines for various components, including gearcases and powerheads.

Procedures:

Specific procedures for anti-corrosion maintenance.

📄 Electrical Systems

Components:

Alternator driven capacitor discharge ignition, battery charging systems.

Types:

Capacitor Discharge Module (CDM), Digital Inductive (DI), Alternator Driven.

📄 Troubleshooting

Scope:

Extensive troubleshooting sections covering various systems including fuel, ignition, electrical, engine, and starting systems.

Systems Covered:

DFI air/fuel, DI digital inductive, EFI, electrical accessories, engine temperature/overheating, engine, fuel primer/enrichment, fuel system, ignition system, starting system, operating requirements, test and repair equipment.

📄 Power Trim Tilt Steering

Components:

Power Trim and Tilt Systems, Power Steering System.

Procedures:

Service procedures for power trim and tilt systems.

📄 Oil Injection

Types:

Variable-ratio electronically controlled oil injection, Variable-ratio oil injection.

Hp Ranges:

75-125hp, 135-200hp, 225 and 250hp, 200 DFI.