🏷️ Basic Information Identification Make: Mercury Mariner Model: Outboard Series: Marathon / SeaPro Year From: 1998 Year To: Current 📋 Manual Details Content Manual Type: Service Repair Workshop Manual Language: English Delivery Format: PDF Download Delivery Method: Instant Download Compatibility Operating Systems: All (PC & MAC Compatible - Windows 95 to 7 and newer, Mac OS) ⚙️ Engine Specifications Configuration Engine Type: 2 Stroke Cylinder Count: 2 (typical for 25hp models) Performance Horsepower: 25hp Fuel System: Carbureted Ignition Ignition System: CDI (Capacitor Discharge Ignition) Cooling Cooling System: Water Cooled 🔧 Transmission Drive Drive Type: Outboard Propeller Drive Gear Ratio Gear Ratio: Varies by model/propeller, typically around 2.00:1 or similar 🔧 Maintenance Routine Tune Up Procedures: Included Timing Adjustments: Included Lubrication Gear Case Oil Type: Specific marine gear lubricant Fuel Oil Mix Ratio: Typically 50:1 (or as specified by manual) 📄 Repair Topics Troubleshooting Troubleshooting Guide: Comprehensive A-Z Systems Electrical System Repair: Included Fuel System Repair: Included Components Lower Unit Repair: Included Tilt Trim System: Included Rewind Starter Repair: Included Assembly Base Repair: Included Visuals Diagrams And Pictures: High Quality Pictures & Diagrams