🏷️ Basic Information Identification Make: Yamaha Model: 25D Year: Unknown (Parts Manual for a specific model) Generation: Unknown (Parts Manual for a specific model) 📋 Manual Details General Manual Type: OEM Replacement Parts Manual Language: English Format: PDF Compatibility: All PC & MAC Computers Availability: Instant Download Requirements: Adobe PDF Reader ⚙️ Engine Specifications Engine Type Engine Type: Outboard Motor Engine Configuration: 2-Stroke (common for older Yamaha 25hp models) Displacement Displacement: 326 cc (likely, based on similar models) Power Horsepower: 25 HP Rpm At Max Power: 5000 RPM (typical for this class) 🔧 Transmission General Transmission Type: Gearcase Gears Gear Ratios: Variable (specific ratio not provided in description) 📐 Dimensions Physical Shaft Length: Short or Long Shaft (model dependent) Weight: Approx. 49 kg (108 lbs) (typical for this class) 🔧 Maintenance Lubrication Oil Type: 2-stroke outboard oil (TC-W3 or equivalent) Oil Capacity: Gearcase oil capacity: 250ml (approx.) Service Interval Spark Plug Replacement: Refer to manual for specific intervals Gearcase Oil Change: Refer to manual for specific intervals 📄 Features Manual Content Illustrations: Yes Exploded Diagrams: Yes Part Numbers: Yes Part Descriptions: Yes Benefits Repair Assembly Aid: Yes Cost Savings: Yes (compared to dealer prices) Print On Demand: Yes