Target Audience:
Yamaha YP400 Majesty owners, independent workshops, professional motorcycle technicians
Value Proposition:
Provides access to the same official diagnostic, service, repair, and maintenance information used by certified Yamaha technicians
Feature 1:
Step-by-step repair instructions
Feature 2:
Detailed diagrams and illustrations
Feature 3:
Complete electrical wiring diagrams
Feature 4:
Torque specifications and fluid capacities
Feature 5:
Troubleshooting and diagnostic procedures
Engine Mechanical:
Engine removal/installation, cylinder head, pistons, crankshaft, lubrication system, cooling system, valve train
Fuel System:
Fuel injection system, throttle body, fuel pump, fuel filter, injectors, sensors
Ignition System:
Ignition coils, spark plugs, ECU control
Transmission Drivetrain:
CVT (Continuously Variable Transmission) service, clutch, drive belt, final drive, gearbox
Electrical System:
Wiring diagrams, starter system, charging system (alternator/stator), battery, lighting, instrumentation, switches, sensors
Chassis Suspension:
Front suspension (forks), rear suspension (shock absorber, swingarm), steering system
Brakes:
Front and rear brake systems, hydraulic lines, calipers, master cylinders, brake pads, discs, bleeding procedures
Bodywork Trim:
Fairings, body panels, seat, storage compartment, lighting components
Diagnostics:
Troubleshooting guides, diagnostic fault codes (if applicable), sensor testing
Maintenance:
Routine checks, oil changes, filter replacements, spark plug replacement, coolant checks, brake pad inspection
Repair:
Component overhaul, engine rebuild, transmission repair, electrical system troubleshooting and repair, suspension component replacement
Installation:
Component installation, accessory fitting (as described by manufacturer)
Depth:
Factory-level diagnostic, service, repair, and maintenance information for professional technicians and mechanics
Engine Type:
4-stroke, liquid-cooled, SOHC, 4-valve
Displacement:
395cc (approximate - actual may vary slightly by market/specific sub-model)
Bore X Stroke:
Refer to manual for exact specifications
Compression Ratio:
Refer to manual for exact specifications
Cooling System:
Liquid-cooled
Horsepower:
Approximately 28-30 HP at RPM (refer to manual for exact figure)
Torque:
Approximately 30-32 Nm at RPM (refer to manual for exact figure)
Fuel Delivery:
Electronic Fuel Injection (EFI)
Fuel Type:
Unleaded gasoline
Ignition Type:
TCI (Transistor Controlled Ignition) or CDI (Capacitor Discharge Ignition), ECU controlled
Oil Type:
Yamalube or equivalent API SG, SAE 10W-40 (refer to manual for precise specification)
Oil Capacity:
Refer to manual for exact capacity (e.g., ~1.9 L with filter change)
Length:
Refer to manual (typically around 2200-2300 mm)
Width:
Refer to manual (typically around 750-800 mm)
Height:
Refer to manual (typically around 1350-1450 mm)
Dry Weight:
Refer to manual (typically around 180-190 kg)
Wet Weight:
Refer to manual (typically around 200-210 kg)
Weight Distribution:
Evenly balanced for stability (design feature)
Safety Compliance:
Meets relevant national and international safety standards for motorcycles/scooters
Brakes:
Disc brakes front and rear, ABS available on some models/markets (manual will specify)
Lighting:
Halogen headlight, LED taillight, turn signals
Frame Construction:
Steel frame for rigidity and safety
Ergonomics:
Comfortable riding position, good visibility
Instrument Cluster:
Analog speedometer, digital odometer, fuel gauge, clock, warning lights
ABS:
Optional Anti-lock Braking System (ABS) may be equipped on certain variants; refer to manual for confirmation
Charging Port:
12V accessory socket often present for charging devices (refer to manual for location and type)
Oil Change Interval:
Every 3,000-5,000 km or 6 months, whichever comes first (refer to manual for exact specification)
Spark Plug Replacement:
Refer to manual for interval (typically around 10,000-20,000 km)
Air Filter Cleaning Replacement:
Refer to manual for interval
Cvt Belt Inspection Replacement:
Refer to manual for interval (typically 20,000-30,000 km)
Engine Oil Viscosity:
SAE 10W-40 (API SG or higher)
Coolant Type:
Ethylene glycol-based coolant with demineralized water (50:50 mixture) - refer to manual for specific Yamaha coolant
Brake Fluid Type:
DOT 4 (refer to manual for exact specification)
Typical Wear Item:
Drive belt wear (normal for CVT), brake pad wear, tire wear
Potential Issues To Monitor:
Cooling system leaks, electrical connection issues (age-related), fuel injector clogging (dependent on fuel quality)
Manufacturer Origin:
Japan
Brand Focus:
Yamaha Corporation is a global leader in motorcycles, musical instruments, and other diverse products.
Majesty Lineage:
The Majesty series is known for its comfortable, maxi-scooter design, offering a blend of practicality and performance for commuting and touring.
Manufacturing Locations:
Likely manufactured in Japan or other Yamaha global facilities
