Target Audience:
DIY enthusiasts, independent repair shops, Yamaha Majesty YP400 owners
Key Selling Points:
Professional quality, highly detailed, saves money on repairs, step-by-step instructions, exploded pictures and diagrams, instant download
Competitive Landscape:
Competes with other maxi-scooters in the 400cc class from brands like Suzuki (Burgman 400), Kymco, and Aprilia during the mid-2000s, offering a blend of performance, comfort, and practicality.
Systems Covered:
General Information, Specifications, Maintenance, Gearbox & Clutch, Engine Removal and Installation, Engine Fuel System, Engine Lubrication and Cooling, Engine Combustion System, Lubrication System, Cylinder Head/Valves, Alternator/Starter Clutch, Crankcase/Piston/Cylinder, Crankshaft/Transmission/Balancer, Transmission System, Front Wheel and Steering System, Rear Wheel System, Fenders and Exhaust Pipe, Periodic Checks & Adjustments, Chassis, Cooling system, Fuel injection system, Braking System, Suspension, Electrical System, Body & Fixtures, Frame/Body Panels/Exhaust System, Wheels & Tyres, Battery/Charging System, Ignition System, Electric Starter, Lights/Meters/Switches, Wiring Diagrams, Technical Information & Specifications, Troubleshooting, Index
Frame And Body:
Frame inspection, body panel removal/installation, fairings, seat, storage compartments
Exhaust System:
Exhaust pipe removal, installation, and inspection
Suspension:
Front fork and rear shock absorber inspection, adjustment, and possible overhaul procedures
Electrical System:
Battery, charging system, ignition system, starter motor, lights, meters, switches, and wiring harness
Wheels And Tires:
Wheel bearing inspection, tire mounting/balancing, tire pressure checks, and replacement procedures
Procedures Included:
Step-by-step repair instructions, detailed exploded diagrams, complete repair procedures, periodic checks and adjustments, troubleshooting guides
Engine Overhaul:
Detailed procedures for engine disassembly, inspection, and reassembly including cylinder head, valves, pistons, crankshaft, and bearings
Fuel System Service:
Fuel injection system diagnostics, component testing, and potential calibration (as applicable)
Electrical Troubleshooting:
Systematic troubleshooting for starting issues, charging problems, lighting malfunctions, and instrument panel errors using wiring diagrams.
Technical Depth:
Covers simple to complicated repairs; comparable to factory shop manuals
Torque Specifications:
Comprehensive torque specifications for all critical fasteners
Clearances And Tolerances:
Specifications for valve clearances, piston ring end gap, bearing clearances, etc.
Diagnostic Tools:
While not explicitly mentioned, professional manuals often allude to or detail the use of specific diagnostic tools for electronic systems.
Engine Type:
4-stroke, liquid-cooled, SOHC, 4-valve
Displacement:
395 cc (24.1 cu in)
Engine Configuration:
Single-cylinder
Bore X Stroke:
83.0 mm x 73.0 mm (3.27 in x 2.87 in)
Fuel Delivery:
Fuel Injection (specifics detailed within manual)
Cooling System:
Liquid-cooled (details on coolant type, capacity, and procedure in manual)
Ignition System:
TCI (Transistor Controlled Ignition) / CDI (Capacitor Discharge Ignition) - details within manual
Cooling Method:
Liquid-cooled
Instrument Panel:
Digital/Analog combination meter with speedometer, tachometer, fuel gauge, odometer, trip meter, clock, and indicator lights (detailed functionality in manual)
Lighting System:
Halogen headlights, LED tail lights, turn signals (troubleshooting and bulb replacement covered)
Wiring Diagrams:
Comprehensive wiring diagrams included for electrical system troubleshooting
Oil Change Interval:
Refer to manual for specific mileage/time interval (typically 4,000-6,000 km or 6-12 months for scooter applications)
Spark Plug Replacement:
Refer to manual for specific mileage/time interval
Engine Oil Type:
Refer to manual for viscosity grade (e.g., 10W-40 or 10W-50) and API classification
Coolant Type:
Refer to manual for specific mixture ratio (e.g., 50/50) and type (e.g., ethylene glycol-based)
Brake Fluid Type:
Refer to manual for DOT specification (e.g., DOT 3 or DOT 4)
Transmission Oil Type:
Refer to manual for viscosity grade and API classification (likely gear oil for final drive)
Common Wear Items:
Variator rollers, drive belt, brake pads, tires (detailed inspection and replacement procedures in manual)
Common Maintenance Tasks:
Regular checking and topping up of engine oil and coolant, adjustment of brakes, chain maintenance (if applicable), tire wear inspection, air filter cleaning/replacement, variator belt inspection.
Tire Pressure:
Refer to manual for recommended pressures (front and rear)
Battery Condition:
Covered under Electrical System and Battery/Charging System sections