🏷️ Basic Information Identification Make: Yamaha Model: Outboard Motors Year: 1998 Generation: Early 1998 Models 📋 Manual Details Document Manual Type: Service & Repair Manual Language: English Page Count: 209 Format: PDF Source: Official Certified Authenticity: Original ⚙️ Engine Specifications Engine Engine Type: 2-Stroke Outboard Displacement: Approx. 1.736L (105.9 cu in) for 115 HP, Approx. 1.798L (109.7 cu in) for 130 HP Power Output: 115 HP and 130 HP Fuel Induction: Carbureted (assumed for this era) Ignition System: CDI (Capacitor Discharge Ignition) Cooling System: Water-cooled Trim System: Power Trim and Tilt (indicated by 'T' in model names) Alternator Output: Standard for charging battery (specific rating not provided) Propeller Shaft: Various pitch and diameter options available (detailed in manual) 🔧 Transmission Gearcase Type: Outboard Gearcase Gear Ratio: Varies by specific model (detailed in manual) Lubricant: Marine Gear Lubricant (specified in manual) 📐 Dimensions Physical Weight: Varies by specific model (approx. 350-400 lbs for 115-130 HP models) 🔧 Maintenance Service Spark Plugs: Specific type and gap detailed in manual Engine Oil Type: 2-Stroke Outboard Oil (specific TC-W3 or equivalent) Gear Oil Capacity: Specific volume for lower unit (detailed in manual) Fuel Filter Replacement: Recommended periodic replacement (detailed in manual) Water Pump Impeller Replacement: Recommended based on hours or annual inspection (detailed in manual) Anodes: Sacrificial anodes for corrosion protection (locations detailed in manual)