🏷️ Basic Information Identification Make: Mercury Mariner Model: Marathon Engine Size Range: 65-125 HP Generation: Marathon Series 📋 Manual Details Publication Info Manual Type: Factory Service Repair Manual Format: Downloadable PDF Language: English Content Type: Detailed illustrations ⚙️ Engine Specifications General Engine Type: 2-Stroke (for models in this range) Cylinder Count: 4-Cylinder (common configuration in this range) Ignition System: CDI (Capacitive Discharge Ignition) Performance Horsepower Range: 65 HP to 125 HP Displacement Displacement Cc Range: Approximately 1385 cc to 1737 cc (depending on specific model) 🔧 Transmission Drivetrain Drive System: Outboard Lower Unit Gearing Gear Reduction Ratio: Variable by model (refer to specific model data) 🔧 Maintenance Lubrication Oil Type Recommendation: TC-W3 Certified 2-Stroke Oil Gearcase Lubricant Type: Marine Gear Lube (e.g., Quicksilver High Performance Gear Lubricant) Service Intervals Annual Service Recommendation: Annual inspection and lubrication Spark Plug Replacement Interval: Refer to manual (typically based on hours of operation) 📄 Fuel System Induction Fuel Delivery: Carbureted 📄 Cooling System Method Cooling Type: Water-Cooled 📄 Electrical System Charging Alternator Output: Varies by model (e.g., 10A, 16A) 📄 Controls Steering Steering System: Remote Steering (or Tiller if equipped) 📄 Trim And Tilt Operation Trim Tilt System: Hydraulic Trim and Tilt (standard on most models in this range)