Model Designation:
X-MAX 400 (Note: The product title lists YP400 X MAJESTY, which is a closely related but distinct model. This manual likely covers the YP400 MAJESTY platform, which the X-MAX 400 evolved from. Given the years 2008-2012, the YP400 MAJESTY is the correct primary identification.)
Model Variant:
YP400 (400cc class Maxi-Scooter)
Production Years Covered:
2008, 2009, 2010, 2011, 2012
Segment:
Maxi-scooter, urban commuter, touring.
Target Audience:
Owner-operators seeking to perform maintenance and repairs, independent workshops, enthusiasts.
Differentiation:
Specificity to make, model, and year, detailed diagrams, comprehensive coverage unlike generic manuals.
Features:
Instant access, detailed step-by-step instructions, electrical diagrams, troubleshooting sections, high technical depth.
Value:
Empowers owners to maintain and repair their Yamaha YP400 efficiently, saving time and money, and ensuring proper operation.
Primary Coverage:
Complete workshop and service repair procedures for the Yamaha YP400 X MAJESTY scooter.
Secondary Coverage:
Electrical diagrams, troubleshooting guides, fluid capacities, maintenance schedules.
Estimated Page Count:
Hundreds (exact number not specified, but typical for comprehensive service manuals covering all systems).
Type:
Service Repair Manual
Powertrain:
Engine disassembly/assembly, cylinder head, valve train, piston, crankshaft, clutch, transmission, sub-transmission, gearshift linkage.
Chassis And Suspension:
Front wheel, front suspension, rear wheel, rear suspension.
Braking System:
Hydraulic brake system inspection, repair, and adjustment.
Electrical System:
Battery, charging system, ignition system, electric starter, switches, wiring diagrams.
Fuel System:
Fuel system components, delivery, and adjustment.
Lubrication:
Lubrication points, oil type, and capacity.
Maintenance:
Routine maintenance, inspections, adjustments, fluid changes.
Repair:
Detailed step-by-step repair procedures for all major components and systems.
Diagnostics And Troubleshooting:
Troubleshooting common issues, diagnostic procedures.
Depth:
Comprehensive, covering everything from basic maintenance to complete engine rebuilds and re-wiring.
Engine Type:
Liquid-cooled, 4-stroke, SOHC, 4-valve
Bore X Stroke:
83.0 mm x 73.0 mm (Typical for this engine platform)
Compression Ratio:
11.0:1 (Typical for this engine platform)
Horsepower:
Approx. 29.5 PS (21.7 kW) @ 7,500 rpm (Est. for 2008-2012 YP400MAJESTY)
Torque:
Approx. 30.0 Nm (22.1 lb-ft) @ 6,000 rpm (Est. for 2008-2012 YP400MAJESTY)
Fuel Delivery:
Electronic Fuel Injection (EFI)
Ignition:
TCI (Transistor Controlled Ignition)
Recommended Oil Viscosity:
10W-40 (Typical, consult manual for exact specification)
Oil Capacity With Filter Change:
Approx. 2.0 Liters (Consult manual for exact specification)
Oil Filter Part Number:
5YP-13440-00-00 (Example, verify with manual)
Coolant Type:
Yamaha's recommended permanent type antifreeze coolant (e.g., 50/50 mix of ethylene glycol and distilled water)
Coolant Capacity:
Approx. 1.0 Liter (Consult manual for exact specification)
Transmission Type:
Automatic (CVT - Continuously Variable Transmission)
Clutch Type:
Automatic centrifugal clutch
Primary Reduction Ratio:
1.051 (Example, consult manual for exact specification)
Secondary Reduction Ratio:
2.500 (Example, consult manual for exact specification)
Fluid Type:
Yamaha Gear Oil 10W-30 API SE or SF (Consult manual for exact specification)
Fluid Capacity:
Approx. 0.26 Liters (Consult manual for exact specification)
Overall Length:
Approx. 2,255 mm (88.8 in)
Overall Width:
Approx. 785 mm (30.9 in)
Overall Height:
Approx. 1,490 mm (58.7 in) (With windscreen)
Dry Weight:
Approx. 199 kg (439 lbs)
Wet Weight:
Approx. 217 kg (478 lbs) (Estimated, including fluids and full tank)
Maximum Load:
Not specified in product info, consult manual.
Front Tire Size:
120/70-15M/C 58P (Tubeless)
Rear Tire Size:
160/60-15M/C 67P (Tubeless)
Front Wheel Type:
Cast aluminum alloy
Rear Wheel Type:
Cast aluminum alloy
Crash Test Information:
Not applicable to motorcycles/scooters in the same way as cars.
Braking System:
Hydraulic disc brakes front and rear. Some models may feature ABS (Anti-lock Braking System) as an option, consult manual for specific features of the model covered.
Lighting:
Dual headlights, LED taillight, turn signals.
Chassis Design:
Steel tube frame for rigidity and stability.
Ergonomics:
Comfortable rider seating position for longer journeys.
Instrument Panel:
Digital/Analog combination meter with speed, tachometer, fuel gauge, clock, odometer, trip meter, engine diagnostics indicator.
ABS:
Optional availability on certain markets/trims for the 2008-2012 period. Manual will cover ABS diagnostics if equipped.
Charging:
12V accessory socket for charging electronic devices (market dependent).
Oil Change Interval:
Every 5,000 km or 6 months (Typical, consult manual for exact intervals and conditions)
Air Filter Check:
Every 10,000 km (Typical, consult manual)
Spark Plug Replacement:
Every 20,000 km (Typical, consult manual)
Valve Clearance Check:
Every 20,000 km (Typical, consult manual)
Brake Fluid:
DOT 4 (Consult manual for exact specification and replacement interval)
Coolant:
50% Ethylene Glycol based coolant with distilled water (Consult manual for exact specification)
Common Wear Items:
Drive belt, roller weights (CVT), brake pads, tires. Addressable with the procedures in this manual.
Potential Faults:
Occasional issues with fuel pump or electrical connectors reported on similar models, diagnostic procedures are covered in the manual.
Manufacturer:
Yamaha Motor Company, Japan.
Reputation:
Globally recognized for innovation, performance, and reliability in motorcycles, scooters, and engines.
Yp Series:
The YP400 MAJESTY (also known as the YP400G) is part of Yamaha's long-standing 'Majesty' line of maxi-scooters, known for their blend of motorcycle-like performance and scooter practicality. This generation was a significant evolution, focusing on comfort, performance, and refined styling. The X-MAX 400, introduced later, built upon this platform.
Manufacturing Locations:
Primarily Japan (for the YP400 Majesty platform itself).
