🏷️ Basic Information Identification Make: Mercury Model: Outboard Year: 1986-2003 Generation: Covered models from 1986 through 2003 📋 Manual Details Document Information Manual Type: Service Manual / Repair Manual Language: English Format: PDF Delivery Method: Instant Download Software Requirements: None (works on all computers) Content Scope Coverage: Complete service procedures for the entire outboard, including removal, installation, diagrams, exploded parts views, and troubleshooting. ⚙️ Engine Specifications General Engine Type: 2-Stroke Power Output Available Horsepower: 6, 8, 9.9, 10, 15 HP Engine Design Engine Configuration: Not explicitly stated, but typical for this HP range would be single or inline 2-cylinder. Engine Block Material: Not specified in product description, typically aluminum alloy for outboards. Fuel System Fuel Delivery System: Carburetor (on some models), Multi-point sequential electronic fuel injection (on some models) Ignition System Ignition Type: CDI (Capacitor Discharge Ignition) or similar electronic ignition, depending on year and model. Cooling System Cooling Method: Water Cooled Lubrication System Lubrication Method: Wet Sump Starting System Starting Method: Electric Start, Manual Start 🔧 Transmission Gear Selection Transmission Type: Forward-Neutral-Reverse Gear Ratios Gear Ratio: Not specified in product description, varies by model and HP. Propulsion Propeller Rotation: Right-hand rotation (standard), Counter rotation (available on some models) 📐 Dimensions Physical Transom Height: Various lengths available for different boat configurations (e.g., short, long, extra-long shaft). Weight: Varies significantly by horsepower rating and specific model, typically between 50-100 lbs for these HP ranges. 🔧 Maintenance Intervals Recommended Service Interval: Refer to specific maintenance schedule in manual; includes regular checks and periodic component replacement. Fluids Gear Oil Capacity: Specified in ml, varies by lower unit size. Typically around 250-400ml for this range. Engine Oil Amount: Specified in liters or quarts, varies by engine model. Requires specific 2-stroke oil mixture or premix. Parts Replacement Spark Plug Replacement: Recommended based on hours or annual inspection. Water Pump Impeller Replacement: Recommended periodically based on operating hours and water conditions (e.g., every 1-2 years or 200 hours). Inspections Bolt And Nut Torque Checks: Critical for ensuring component security and preventing leaks/damage. Fuel Recommended Fuel Grade: Unleaded gasoline (87, 91, 92, 93 octane, Race Gas). 📄 Troubleshooting Common Issues Engine Starting Problems: Manual covers diagnosis for 'engine won't start', 'engine cranks but won't turn over'. Engine Running Problems: Manual covers diagnosis for 'engine starts but then shut off', 'engine bogs during acceleration', 'engine hesitates during acceleration', 'engine idles rough', 'engine idles and then shuts off', 'excessive smoke during idling', 'white smoke', 'blue oil smoke', 'black smoke', 'motor misses'. 📄 Electrical Charging System Charging System Components: Battery charging system, battery charging coil, rectifier/regulator. Ignition System Components Ignition Components: Charge coil, crank position sensor, ignition coil, spark plug. 📄 Powerhead Engine Rebuild Powerhead Components: Cylinder head, intake manifold, pistons, piston rings, crankshaft, counter balancer mechanism, thermostat, oil pump. 📄 Mid Section Assembly Mid Section Components: Driveshaft housing, oil pan, swivel bracket, steering bracket, clamp, water pressure valve. 📄 Lower Unit Assembly Lower Unit Components: Gear case, gears, drive shaft, oil seal housing, water pump, shift guide housing, propeller shaft, gear bearings. 📄 Attachments Control Systems Control Linkage: Throttle/shift linkage, tiller handle.