🏷️ Basic Information Identification Make: Mercury Marine Brand: Mariner Years Covered: 1965-1991 Engine Type: 2-Stroke Coverage Engine Models Covered: 39, 40, 45, 60, 75, 90, 110, 200, 210, 350, 400, 402, 2.2HP, 3.6HP, 4HP, 4.5HP, 7.5HP, 9.8HP, 18HP, 20HP, 25HP, 35HP, 40HP Horsepower Range: 2HP - 40HP 📋 Manual Details Format Manual Type: Repair Manual, Owner's Manual, Parts Catalog Format: Electronic Downloadable PDF Availability Delivery Method: Instant Download Support Support Policy: Lifetime Protection Policy (if lost or damaged) Language Language: English Content Topics Covered: General Information, Routine Maintenance, Engine Removal and Installation, Fuel System, Lubrication and Cooling System, Engine Specifications, Transmission, Drive Chain & Sprockets, Steering System, Shocks, Body Work, Intake & Exhaust, Electrical System, Advanced Troubleshooting ⚙️ Engine Specifications General Engine Design: 2-Stroke Specifications Displacement: Varies by model (e.g., 40HP models typically around 39.9 cubic inches or 653cc) Power Output: 2HP to 40HP (varies by model) Cooling Cooling System: Water-Cooled Fuel System Fuel Delivery: Carbureted (specific configurations vary by model) Lubrication Lubrication Method: Pre-mix fuel/oil or oil injection (varies by model and year) 🔧 Transmission Drive Drive Type: Outboard Drive Gear Ratios Gear Ratios: Varies by model 🔧 Maintenance Routine Routine Maintenance Topics: Spark plug replacement, fuel filter change, water pump impeller inspection/replacement, gearcase oil change, general inspection Oil Gearcase Oil Capacity: Varies by model (typically around 8-16 oz) Ignition Ignition System: Magneto ignition (specific type varies by model) 📄 Electrical System Charging Charging System: Alternator or Stator (varies by model) Ignition Ignition Timing: Varies by model (adjustable in some cases) 📄 Steering System Control Steering Mechanism: Tiller or Remote Steering (varies by model)