Mercury Mariner (outboard) 20 Jet-20-25 - 25 Marathon 25 Seapro Service Manual

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🏷️ Basic Information Identification Make: Mercury Model: Mariner Outboard Year: Multiple (covers models 20 Jet, 20-25, 25 Marathon, 25 Seapro) Generation: Specific to the covered engine models 📋 Manual Details...

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Type: Engine

Vendor:

Sku: 24649

Tags: 20 Jet 20-25 25 Marathon 25 Seapro Beta Marine Engine Marathon Models Marine Mercury Mercury Mariner Outboard Engines

Product variants

Description

🏷️ Basic Information

Identification

Make:

Mercury

Model:

Mariner Outboard

Year:

Multiple (covers models 20 Jet, 20-25, 25 Marathon, 25 Seapro)

Generation:

Specific to the covered engine models

📋 Manual Details

Document Type

Manual Type:

Service Manual

Language:

English

Document Format

Format:

PDF Download

Content Features

Content Focus:

Repair and Service Information

Target Audience:

Do-it-yourselfer and Experienced Mechanic

Instruction Format:

Step-by-step instructions, Detailed substeps

Visual Aids:

Hundreds of photos and illustrations, Detailed illustrations, drawings and photos, Enlarged inset for parts examination

Safety Information:

Notes, cautions and warnings

Navigation:

Numbered instructions, Bold figure numbers

⚙️ Engine Specifications

Engine Configuration

Engine Type:

Outboard Motor

Engine Variants

Specific Models Covered:

20 Jet, 20-25, 25 Marathon, 25 Seapro

Engine Power

Horsepower Range:

20 HP to 25 HP (depending on specific model)

Engine Displacement

Displacement:

Not specified in description, but expected to be specific to each engine variant

Engine Cooling

Cooling System:

Water-cooled (typical for outboards)

Fuel System

Fuel Delivery:

Likely carburetor based, specific type would be detailed in manual

Ignition System

Ignition Type:

Not specified in description, but likely CDI or similar

🔧 Transmission

Drive System

Type:

Outboard Drive Unit (Lower Unit)

Gear Ratios

Gears:

Forward, Neutral, Reverse (standard for outboards); specific ratios would be in manual

🔧 Maintenance

Lubrication

Gear Lube Capacity:

Specific to each model, detailed in manual

Recommended Oil Type:

Specific Mercury gear lube, detailed in manual

Scheduled Maintenance

Service Interval:

Detailed in manual based on hours of operation and usage conditions

Maintenance Procedures

Common Tasks:

Spark plug replacement, fuel filter replacement, impeller inspection/replacement, lower unit service, engine tune-up