🏷️ Basic Information Identification Make: Mercury Model: Mariner Outboard Series: 30/40 2 Cylinder Covered Models: • 30 • 30 Marathon • 30 Sea Pro • 40 • 40 Marathon • 40 Sea Pro Serial Numbers Us: 0G044027 and Above Serial Numbers Belgium: 09855139 and Above 📋 Manual Details Manual Information Manual Type: Service Repair Manual Downloadable: True File Format: PDF Compatibility: All Versions of Windows & Mac Language: English Requirements: Adobe PDF Reader Printable: True Content Features Diagrams: High Quality Instructions: Step-by-step ⚙️ Engine Specifications Engine Configuration Cylinders: 2 Engine Type: 2-Stroke Performance Horsepower: 30-40 HP Systems Fuel System: Carbureted Ignition System: CDI Charging System: Alternator/Stator Starting System: Manual Starter / Electric Start (Optional) Oil Injection: True Cooling System Cooling Type: Water-Cooled 🔧 Transmission Drive System Drive Type: Outboard Gear Selection Forward Neutral Reverse: True 🔧 Maintenance Routine Maintenance Covered Maintenance Topics: • Specifications • Maintenance • General Information • Outboard Installation • Electrical • Ignition • Charging & Starting System • Timing, Synchronizing & Adjusting • Wiring Diagrams • Fuel System • Fuel Pump • Carburetor • Oil Injection • Powerhead • Mid-Section • Clamp/Swivel Brackets & Drive Shaft Housing • Power Trim • Manual Tilt • Lower Unit • Attachments/Control Linkage • Throttle/Shift Linkage • Tiller Handle • Manual Starter