🏷️ Basic Information Identification Make: Yamaha Model: 70 ETLF Outboard Year: 1989 Generation: N/A 📋 Manual Details Publication Manual Type: Service Repair Maintenance Manual Language: English Page Count: Comprehensive (specific number not provided in description) Format: PDF Features Searchable: Yes Bookmarked: Yes Diagrams: Exploded diagrams included Procedure Format: Step-by-step ⚙️ Engine Specifications General Engine Type: Outboard Motor Configuration Cylinder Configuration: Inline 3-Cylinder (typical for this HP range and era) Displacement Displacement: 93.4 cu. in. (1531 cc) - typical for this model Induction Fuel Induction: Carburetor Ignition Ignition System: CDI Cooling Cooling System: Water-cooled Power Horsepower: 70 Operation Starting System: Electric Start 🔧 Transmission Drive Type: Outboard Lower Unit Gearing Gear Ratio: Specific ratio not provided, but typical for this class 🔧 Maintenance Lubrication Oil Type: 2-stroke outboard oil (TC-W3 recommended) Oil Capacity: Refer to manual for exact capacity and oil/fuel mix ratio Service Service Interval: Refer to manual for specific intervals (e.g., annual, hourly) 📄 Performance Propulsion Propeller Type: Outboard Propeller (size/pitch dependent on boat and load) 📄 Electrical Charging Alternator Output: Refer to manual for specific output (Amps/Volts) 📄 Controls Steering Steering Type: Remote Steering (typical for this model) Throttle Throttle Control: Remote Throttle Control (typical for this model)