🏷️ Basic Information Identification Make: Mercury Model: 30/40 HP 4 Stroke EFI Outboard Year: 1999-2002 Specific Models Covered: 30/40 MH, 30/40 ELPT, 40 ELPT BIGFOOT 📋 Manual Details Publication Manual Type: Service Manual / Repair Manual Language: English Format: PDF Delivery: Instant Download Software Requirement: None (works on all computers) ⚙️ Engine Specifications General Engine Type: 4-Stroke Fuel System: Multi-point Sequential Electronic Fuel Injection (EFI) Cooling System: Water Cooled Lubrication System: Wet Sump Starting System: Electric Start Engine Cylinders: Not specified, but implied to be multiple for 30/40 HP Engine Displacement: Not specified Power Output: 30 HP / 40 HP Recommended Fuel: 87, 91, 92, 93 Octane Gasoline, Race Gas Spark Plug Type: Specified in manual Thermostat Operating Temperature: Specified in manual 🔧 Transmission Gearing Type: Forward-Neutral-Reverse (F-N-R) Gearcase Oil Capacity: Specified in ml Gear Oil Recommendation: Specified in manual Propeller Propeller Shaft Rotation: Right-hand rotation Counter Rotation Propeller: Available/Covered in manual 📐 Dimensions Physical Overall Length: Not specified Overall Width: Not specified Transom Height: Not specified Weight: Not specified Maximum Tilt Angle: Specified in degrees 🔧 Maintenance Intervals Service Interval: Recommended based on operating hours and conditions (detailed in manual) Fluid Capacities Engine Oil Amount: Specified in manual Engine Oil Viscosity Rating: Specified in manual Gearcase Oil Capacity Ml: Specified in manual Tasks Spark Plug Maintenance: Inspection and replacement Fuel System Maintenance: Fuel line replacement, fuel hose replacement, fuel filter (low pressure and high pressure) replacement, fuel mixture check Lubrication Maintenance: Engine oil change, gear oil change, lubrication points, anode and bonding wire inspection/replacement Water Pump Maintenance: Impeller replacement Ignition System Maintenance: Ignition timing check, spark plug firing order Engine Component Maintenance: Tappet clearance adjustment, balancer chain inspection, bolt and nut tightening, timing belt inspection 📄 Troubleshooting Common Issues Engine No Start: Covered Engine Cranks Wont Turn Over: Covered Engine Starts Shuts Off: Covered Engine Bogging Hesitation: Covered Rough Idle Shutdown: Covered Excessive Smoke: Covered (white, blue, black) 📄 Electrical Charging System Battery Charging System Tests: Covered Components Starter Motor Service: Removal, installation, troubleshooting Charging Coil Testing: Covered Rectifier Regulator Testing: Covered 📄 Ignition System Ignition Timing: Checking and adjustment Ignition Coil Resistance: Specified in manual Crank Position Sensor Resistance: Specified in manual Engine Speed Limiter: Covered Low Oil Pressure Switch: Covered 📄 Efi System Components Fuel Injection Nozzle: Service procedures Fuel Pump Service: High pressure and low pressure Throttle Body Service: Covered Throttle Position Sensor: Service procedures 📄 Powerhead Engine Rebuild Cylinder Head Service: Removal, inspection, installation Piston And Rings: Service procedures Crankshaft Service: Covered Oil Pump Service: Covered 📄 Mid Section Components Driveshaft Housing: Inspection, removal, installation, cleaning, assembly Swivel Bracket Steering Bracket: Service procedures Water Pressure Valve: Service procedures 📄 Lower Unit Gearing And Drive Gear Case Service: Inspection, removal, installation, cleaning, assembly Gear Shim Adjustment: Covered Drive Shaft Oil Seal Housing: Service procedures Water Pump Components: Service procedures Propeller Shaft Components: Service procedures 📄 Wiring Diagrams Electrical Schematics Presence Of Wiring Diagrams: Yes 📄 Attachments Controls Linkage Throttle Shift Linkage: Service procedures Tiller Handle Tiller Handle Service: Covered Manual Starter Manual Starter Service: Covered