Segment:
Maxi-scooter / Grand Tourer Scooter
Target Audience:
Commuters, touring riders, riders seeking comfort and storage
Key Competitors:
Suzuki Burgman 400, Honda Silver Wing (FSC600), Kymco Downtown 300i/400i (depending on market and year)
Comfort:
Spacious seating, good wind protection, comfortable ergonomics
Storage:
Generous under-seat storage, often accommodating two helmets
Performance:
Balanced for urban commuting and highway cruising
Coverage Years:
2005, 2006, 2007
Model Variants Covered:
YP400T, YP400V, YP400W (representing different market specifications or minor updates within these years)
Page Count Estimated:
Over 300 pages (typical for a comprehensive service manual)
Manual Type:
Service and Repair Manual
Comparable To:
Factory Workshop Manual (FSM), OEM Service Manual
Powertrain:
Engine, fuel system, ignition system, exhaust system, transmission (CVT), final drive
Chassis:
Frame, suspension (front and rear), steering, wheels, tires
Brakes:
Front and rear brake systems (hydraulic disc brakes), parking brake
Electrical:
Battery, charging system, starting system, lighting, instruments, sensors, ECU, wiring diagrams
Bodywork:
Body panels, fairings, seats, storage compartments, trim
Maintenance:
Scheduled maintenance, fluid changes, filter replacements, lubrication, spark plug service
Troubleshooting:
Diagnostic procedures, symptom analysis, fault finding for all systems
Repair:
Component removal and installation, disassembly and reassembly, adjustments
Diagnostics:
On-board diagnostics (OBD) information, error codes, sensor testing
Technical Adjustments:
Carburetor (if applicable, though likely fuel injected), throttle cable, brake levers, chain tension (if applicable, typically belt drive), valve clearance (if applicable)
Depth:
Comprehensive: From basic maintenance to complete engine and transmission overhauls
Diagnostic Tools:
References to diagnostic connectors and basic tool requirements
Torque Specifications:
Detailed torque values for all fasteners
Clearances:
Engine component clearances, bearing play, etc.
Wiring Diagrams:
Full electrical system wiring diagrams with component identification
Searchability:
Searchable text for quick information retrieval
Print Quality:
High-resolution, printable pages
Layout:
Organized sections with clear headings and indexes
Image Quality:
Clear diagrams, illustrations, and photographs
Binding Type:
Not applicable (digital format)
Paper Type:
Not applicable (digital format)
Engine Type:
Four-stroke, liquid-cooled, SOHC, 4-valve
Bore X Stroke:
83.0 mm x 73.0 mm (typical for YP400)
Compression Ratio:
10.6:1 (typical for YP400)
Fuel Delivery:
Fuel Injection (FI)
Horsepower Estimated:
~28-30 HP @ 6,500 RPM (typical for this engine)
Torque Estimated:
~37-39 Nm @ 5,250 RPM (typical for this engine)
Fuel Type:
Unleaded gasoline
Fuel Capacity:
14 Liters (approx. 3.7 US gallons)
Transmission Type:
Automatic (CVT - Continuously Variable Transmission)
Final Drive:
Belt drive to rear wheel
Clutch Type:
Automatic centrifugal clutch
Transmission Fluid Type:
Yamaha recommends specific gear oil for the final drive (consult manual for exact specification, e.g., SAE 80 or 90 hypoid gear oil)
Belt Tensioner:
Automatic adjustment, belt inspection and replacement recommended as per service schedule
Length:
2,175 mm (approx. 85.6 inches)
Width:
775 mm (approx. 30.5 inches)
Height:
1,390 mm (approx. 54.7 inches) (with windscreen)
Seat Height:
790 mm (approx. 31.1 inches)
Dry Weight:
183 kg (approx. 403 lbs)
Wet Weight:
197 kg (approx. 434 lbs) (fully fueled)
Underseat Storage:
Significant capacity, typically fits two full-face helmets
Front Storage:
Glove box compartment
Crash Test Data:
Motorcycles and scooters typically do not undergo standardized crash testing like automobiles. Safety is based on design and rider skill.
Brakes:
Disc brakes front and rear for effective stopping power.
Lighting:
Headlight, taillight, brake lights, turn signals for visibility.
Tires:
Tubeless tires for improved puncture resistance and stability.
Body Design:
Full fairing for rider protection from wind and debris.
Mirrors:
Integrated rearview mirrors for situational awareness.
Parking Brake:
Hand-operated parking brake for secure parking on inclines.
Instrument Cluster:
Digital LCD display with analog tachometer, speedometer, fuel gauge, clock, odometer, trip meter, and warning lights.
ABS Availability:
ABS (Anti-lock Braking System) was an optional feature on some variants of the YP400 Majesty during these years. The manual would specify if it covers ABS systems.
Diagnostic Port:
Standard diagnostic connector for accessing engine control unit (ECU) data and error codes.
Oil Change Interval:
Every 3,000 km or 3 months (whichever comes first), consult manual for specific details.
Air Filter Replacement:
Inspect every 3,000 km, replace as needed or per schedule (e.g., every 12,000 km).
Spark Plug Replacement:
Replace every 6,000 km or as per manual recommendation (e.g., NGK CR9E or similar).
Belt Inspection:
Inspect drive belt condition and tension every 6,000 km. Replace based on wear or at recommended intervals (e.g., 20,000 km).
Engine Oil Type:
Yamalube 4 (or equivalent SAE 10W-40 API SG or higher, JASO MA compliant synthetic or mineral oil)
Engine Oil Capacity:
1.7 Liters (with oil filter change)
Coolant Type:
Yamaha-specific liquid cooled engine coolant or equivalent ethylene glycol-based antifreeze with distilled water (50:50 mix)
Brake Fluid Type:
DOT 4 hydraulic brake fluid
Drive Belt Wear:
Early wear on the drive belt can occur if the scooter is consistently ridden hard or overloaded. Regular inspection is key.
Cvt Performance:
Occasional reports of CVT belt slippage or hesitation, often linked to worn components or incorrect belt maintenance.
Electrical Connector Corrosion:
As with many scooters, especially those exposed to varying weather, electrical connectors can corrode over time, leading to intermittent issues. The manual will detail how to check and clean these.
Cooling System Maintenance:
Ensuring the cooling system is properly filled and bled is crucial for engine longevity. The manual provides the correct procedure.
Brand Focus:
Yamaha Motor Company is renowned for its extensive range of motorcycles, scooters, ATVs, and marine products, established in 1955.
Yp400 Introduction:
The YP400 Majesty platform was introduced globally around 2003, establishing Yamaha's presence in the larger displacement scooter market.
Yp400 Updates 2005-2007:
The years 2005-2007 saw minor updates, often including aesthetic changes, slight ECU tuning, or variations in market-specific features (e.g., YP400T, YP400V, YP400W codes).
Yp400 Later Generations:
The YP400 platform was later evolved into the TMAX 530/560 series, though the Majesty branding continued in some markets with different displacements.
Manufacturing Location:
Primarily manufactured in Japan by Yamaha Motor Co., Ltd.
Industry Acclaim:
The Majesty line generally received positive reviews for its comfort, practicality, and performance in the maxi-scooter segment.
User Satisfaction:
Owners often praised its suitability for commuting and light touring, highlighting its stable handling and robust engine.
Emissions Standards:
Compliance with applicable emissions standards for the target markets during the 2005-2007 period.
