🏷️ Basic Information Identification Make: Mercury/Mariner Model: 9.9/15 HP 4-Stroke Outboard Year: 1998-2001 Generation: 1998-2001 📋 Manual Details Manual Information Manual Type: Service Manual / Repair Manual Language: English Format: PDF Delivery Method: Instant Download ⚙️ Engine Specifications Engine Configuration Engine Type: 4-Stroke Number Of Cylinders: 2 Engine Design: DOHC Total Displacement: 323 cc Engine Operation Fuel Supply System: Multi-point sequential electronic fuel injection (EFI) / Carburetor (model dependent) Cooling System: Water Cooled Lubrication System: Wet Sump Starting System: Electric / Manual (model dependent) Recommended Fuel: 87-93 Octane Gasoline 🔧 Transmission Gear System Type: Outboard Gearcase Gears: Forward-Neutral-Reverse Propeller Shaft Rotation: Right-hand rotation / Counter rotation (model dependent) 📐 Dimensions Physical Attributes Transom Height: Standard (specific height varies by model, not explicitly stated in product description) 🔧 Maintenance Service Schedule Service Interval: Regular maintenance recommended based on usage and operating conditions Fluid Capacities Engine Oil Capacity: Refer to manual for specific amounts per model and year Gear Oil Capacity: Specified in ml (exact quantity not provided in product description) 📄 Ignition Ignition System Ignition Type: CDI (Capacitor Discharge Ignition) (inferred from typical outboards of this era) 📄 Electrical Charging System Charging System Type: Alternator / Stator (inferred) 📄 Powerhead Engine Components Piston Type: Piston and Piston Rings Thermostat Operation: Thermostat operating temperature 📄 Control Systems Throttle Shift Throttle Control: Throttle linkage, Throttle Handle Steering Steering Mechanism: Steering bracket and clamp