🏷️ Basic Information Identification Make: Yamaha Model: 50EJRY Year: 2000 Generation: Early 2000s 📋 Manual Details Publication Info Manual Type: Service Repair Maintenance Factory Professional Manual Language: English Format: PDF Download Features Searchable: Yes Bookmarked: Yes Diagrams: Exploded diagrams before disassembly sections Organization: Step-by-step format ⚙️ Engine Specifications Engine Configuration Engine Type: 2-Stroke Cylinders: 3 Displacement: 703 cc (42.9 cubic inches) Performance Power: 50 HP Maximum Rpm Range: 4500-5500 RPM Fuel System Carburetion: 3 Carburetors Ignition Ignition System: CDI (Capacitor Discharge Ignition) Cooling System Cooling: Water-cooled 🔧 Transmission Gear Reduction Gear Ratio: 1.85:1 (24/13) Shift Controls Gear Shift: Forward, Neutral, Reverse 🔧 Maintenance Lubrication Oil Capacity Gearcase: Approx. 0.95 L (0.01 cubic meters) Recommended Gear Oil: Yamalube Marine Gear Oil or equivalent Fuel Mixture Fuel Oil Ratio: 50:1 (for break-in, then 100:1 for normal operation with TCW-3 oil) Spark Plugs Recommended Spark Plug: NGK BR6HS-10 or Champion QL77JC4 Spark Plug Gap: 1.0 mm (0.040 inches)