Target Audience:
DIY mechanics, professional repair shops, owners seeking to maintain or repair their Yamaha Majesty 400
Key Benefit:
Save money on repair bills, gain in-depth knowledge for vehicle care
Manual Quality:
BEST manuals on Tradebit, complete and professional quality
Segment Competition:
Competes with other maxi-scooters of similar displacement from brands like Suzuki (Burgman 400), Honda (Silver Wing 400, although displacement varies), and Kymco.
Engine Systems:
Fuel System, Lubrication, Cooling, Combustion, Fuel Injection
Powertrain Systems:
Gearbox, Clutch, Crankshaft, Transmission, Balancer
Chassis Systems:
Front Wheel, Steering, Rear Wheel, Frame, Body Panels, Exhaust System
Braking Systems:
Braking System, Wheels/Tires/Brakes
Electrical Systems:
Alternator, Starter Clutch, Battery, Charging System, Ignition System, Electric Starter, Lights, Meters, Switches, Wiring Diagrams
Maintenance Procedures:
Periodic checks & Adjustments, Maintenance
Repair Procedures:
Engine Removal and Installation, All repair procedures covered
Depth Of Information:
Step-by-step instructions, highly detailed exploded pictures & diagrams, covers simple to complicated repairs
Diagnostic Tools:
Information on using basic tools and potentially specific diagnostic methods for EFI systems (though advanced scan tool procedures might be separate).
Torque Specifications:
Includes critical torque values for engine, chassis, and electrical components, essential for proper assembly.
Electrical Schematics:
Detailed wiring diagrams illustrating the layout and function of all electrical circuits.
Engine Rebuild:
Detailed procedures for engine disassembly, inspection, and reassembly, including cylinder head, piston, crankshaft, and transmission components.
Suspension Repair:
Front fork (telescopic) and rear suspension (swingarm, shock absorber) service and repair instructions.
Electrical Diagnostics:
Comprehensive troubleshooting for ignition, charging systems, starter motor, lighting, and wiring harness issues with detailed wiring diagrams.
Troubleshooting Guides:
Specific troubleshooting sections to diagnose common problems, often presented in a flow-chart or symptom-based format.
Bodywork And Fixtures:
Covers removal and installation of fairings, body panels, seat, and other cosmetic and functional fixtures.
Exhaust System:
Information on exhaust pipe removal, installation, and inspection.
Print Quality:
High resolution for clarity of diagrams and text
Searchability:
Likely searchable due to PDF format, enabling quick access to specific topics
Printability:
Print entire manual or specific categories/pages
File Size:
Variable, but typically in the range of 50-150 MB for comprehensive manuals.
Watermarking:
Unspecified, but professional manuals are typically free of intrusive watermarks.
Operating Systems:
Win/MAC/Linux
Engine Type:
Four-stroke, liquid-cooled, SOHC, 4-valve
Engine Displacement:
395cc (specific model year variations may apply)
Fuel Delivery:
Electronic Fuel Injection (EFI)
Power Output:
Approx. 21.3 kW (28.6 hp) @ 7,500 rpm (typical for this displacement and era)
Torque Output:
Approx. 32 Nm (23.6 ft-lbs) @ 6,000 rpm (typical for this displacement and era)
Cooling Method:
Liquid-cooled
Ignition Timing:
Electronically controlled ignition timing, detailed specifications in manual.
Oil Pump Type:
Wet sump lubrication, oil pump driven by crankshaft.
Starter Type:
Electric Starter
Ignition System Type:
Digital CDI (Capacitor Discharge Ignition)
Length:
Approx. 2,205 mm (86.8 in) (typical for YP400)
Width:
Approx. 775 mm (30.5 in) (typical for YP400)
Height:
Approx. 1,420 mm (55.9 in) (typical for YP400)
Wet Weight:
Approx. 178 kg (392 lbs) (typical for YP400)
Fuel Capacity:
Approx. 14 liters (3.7 US gal)
Wheelbase:
Approx. 1,545 mm (60.8 in) (typical for YP400)
Front Tire Size:
120/70-14 M/C 58P
Rear Tire Size:
160/60-15 M/C 67P
Dashboard Features:
Analog tachometer, digital speedometer, fuel gauge, odometer, trip meter, clock, coolant temperature warning light, oil level warning light.
Storage:
Under-seat storage compartment capable of holding a full-face helmet.
Ignition:
Key ignition with steering lock and seat opener function.
Oil Change Interval:
Typically every 3,000-5,000 km or 6 months, refer to manual for specific interval (e.g., 5,000 km).
Air Filter Inspection:
Inspect every 5,000 km, replace as needed or at specified intervals.
Spark Plug Replacement:
Typically every 10,000-20,000 km, depending on plug type.
Engine Oil Type:
Yamalube (or equivalent) SAE 10W-40 API SG or higher, JASO MA certified motorcycle oil. Specific capacity around 1.6-1.7 liters.
Coolant Type:
High-quality ethylene glycol-based antifreeze coolant with distilled water (50/50 mixture).
Brake Fluid Type:
DOT 4 Hydraulic Brake Fluid.
Final Drive Oil Type:
Yamaha Genuine Gear Oil or equivalent SAE 80 API GL-4.
Common Wear Items:
CVT belt, drive face, roller weights (due to high mileage and continuous use), brake pads, tires.
Potential Electrical Concerns:
While generally reliable, some older models might experience minor electrical connections or stator output issues that this manual would help diagnose.
Common Maintenance Items:
Regular CVT belt inspection and replacement, checking clutch shoes and drive face wear, throttle body cleaning for EFI models.
Model Introduction:
The Majesty series is known for its maxi-scooter segment focus, offering comfort and practicality for commuting and touring. The YP400 variant represents a significant displacement for the Majesty line, enhancing performance and capabilities.
Yamaha Motorcycles:
Yamaha Motor Corporation is a global leader in powersports, renowned for its innovation, performance, and reliability across motorcycles, scooters, and other motorized products.