Mercury Mariner Marathon, Sea Pro outboard motor 30 hp, 40 hp service manual

Product Information

Table of Contents

1. Specifications

   • Specifications for Models
   • Torque Specifications

2. General Information

   • Identification
   • Troubleshooting

3. Outboard Installation

   • Mounting
   • Pre-Delivery Inspection
   • Break-In Procedure

Electrical

1. Ignition

   • Ignition System Operation
   • Ignition System Testing

2. Charging System

   • Charging System Operation
   • Charging System Testing

3. Wiring, Troubleshooting, and Adjusting

   • Wiring Diagrams
   • Electrical Troubleshooting
   • Adjusting Electrical Components

Fuel System

1. Carburetor

   • Carburetor Operation
   • Carburetor Adjustment
   • Carburetor Disassembly and Assembly

2. Fuel Pump

   • Fuel Pump Operation
   • Fuel Pump Testing and Replacement

Powerhead

1. Cylinder Block

   • Cylinder Block Disassembly
   • Cylinder Block Inspection
   • Cylinder Block Reassembly

2. Cylinder Head

   • Cylinder Head Removal
   • Cylinder Head Inspection
   • Cylinder Head Installation

3. Pistons and Connecting Rods

   • Piston and Connecting Rod Removal
   • Piston and Connecting Rod Inspection
   • Piston and Connecting Rod Installation

Mid-Section

1. Exhaust System

   • Exhaust System Operation
   • Exhaust System Inspection and Maintenance

2. Driveshaft Housing

   • Driveshaft Housing Removal
   • Driveshaft Housing Inspection
   • Driveshaft Housing Installation

Lower Unit

1. Gear Housing

   • Gear Housing Disassembly
   • Gear Housing Inspection
   • Gear Housing Reassembly

2. Propeller Shaft

   • Propeller Shaft Removal
   • Propeller Shaft Inspection
   • Propeller Shaft Installation

Attachments/Control Linkage

1. Throttle Linkage

   • Throttle Linkage Operation
   • Throttle Linkage Adjustment

2. Gear Shift Linkage

   • Gear Shift Linkage Operation
   • Gear Shift Linkage Adjustment

Manual Starter

1. Manual Starter Operation
   • Manual Starter Components
   • Manual Starter Maintenance and Repair

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