🏷️ Basic Information Identification Make: Yamaha Model: 150ETLJ Year: 1986 Product Type: Outboard Motor 📋 Manual Details Documentation Manual Type: Service Repair Maintenance Manual Manual Format: PDF Language: English Searchable: Yes Bookmarked: Yes ⚙️ Engine Specifications Engine Engine Configuration: Inline 4-Cylinder Displacement: 1730 cc Bore X Stroke: 82 x 80 mm Compression Ratio: 8.3:1 Fuel Induction: Carbureted Ignition System: CDI Spark Plug: NGK BUHW Power Output: 150 HP Full Throttle Rpm Range: 4500-5500 RPM 🔧 Transmission Gear Reduction Gear Ratio: 1.85:1 (13:24) Propeller Shaft: Splined 🔧 Maintenance Lubrication Gearcase Oil Type: Yamaha Outboard Gearcase Lubricant Gearcase Oil Capacity: Approx. 750 ml Recommended Oil Grade 2 Stroke: Yamalube 2-stroke TC-W3 Scheduled Maintenance Initial Break In Period: 10 hours Regular Service Interval: Annually or every 100 hours