Vehicle Segment:
Maxi-scooter, urban commuter, personal transport
Manual Value Proposition:
Provides factory-level diagnostic and repair data, enabling users to perform maintenance and repairs efficiently and accurately, thereby extending the life and performance of the Yamaha YP250 Majesty.
Manual Target Audience:
Professional motorcycle technicians, independent repair shops, and experienced home mechanics who require accurate, factory-supplied information for servicing the YP250 Majesty.
Manual Advantage:
This is an original factory service manual, offering unparalleled accuracy and detail compared to generic repair guides. Its comprehensive coverage ensures all aspects of the vehicle are addressed.
Covered Systems:
Engine, Electrical System, Power Supply, Cooling System, Fuel System, Braking System, Suspensions, Chassis, Bodywork, Maintenance, Troubleshooting, Special Tools, Pre-Delivery
Manual Type:
Service Repair Workshop Manual
Accessibility:
Searchable text within the PDF allows for quick information retrieval, enhancing usability for quick lookups or in-depth study.
Engine Systems:
Engine disassembly, assembly, inspection, repair, piston, rings, cylinder, crankshaft, camshaft, valves, valve timing, oil pump, oil seals, gaskets, engine mounts
Electrical System:
Wiring diagrams, starter system, charging system, ignition system, lighting system, indicators, switches, battery, fuse box, component testing
Cooling System:
Coolant, radiator, water pump, thermostat, hoses, fan operation, inspection, and replacement
Braking System:
Front and rear brakes, brake pads, brake discs, brake fluid, caliper overhaul, bleeding procedure, brake system inspection
Suspension:
Front fork, rear shock absorber, linkages, bearings, inspection, adjustment, and replacement
Chassis:
Frame, steering system, wheel alignment, bearings, and general chassis inspection
Bodywork:
Body panels, fairings, seat, storage compartment, trim pieces, removal and installation procedures
Maintenance Procedures:
Routine checks, oil changes, filter replacements, spark plug service, air filter cleaning/replacement, brake fluid flush, coolant checks and replacement, lubrication points
Troubleshooting:
Diagnostic charts for common problems, symptom-based troubleshooting, electrical fault finding, engine performance issues
Repair Procedures:
Detailed step-by-step instructions for component removal, overhaul, and reinstallation for all major systems
Engine Rebuild:
Detailed instructions for complete engine teardown, inspection of internal components (crankshaft, connecting rod, bearings, pistons, rings, cylinder), reassembly, and critical torque specifications.
Carburetor Overhaul:
Step-by-step guide for disassembling, cleaning, inspecting, and reassembling the carburetor, including jet sizes and float height adjustments.
Cv Transmission Service:
Procedures for inspecting and replacing CVT belt, drive and driven pulleys, clutch, and clutch housing, including correct torque values and alignment checks.
Electrical Diagnostics:
Extensive wiring diagrams for all circuits, troubleshooting charts for electrical faults, testing procedures for ignition, charging, starting, and lighting systems.
Depth Of Information:
Comprehensive diagnostic and repair information for professional technicians and experienced DIY enthusiasts. Includes detailed specifications, diagrams, and procedures for complete engine rebuilds and complex electrical system diagnostics.
Diagnostic Tools Required:
Standard mechanic's tools, feeler gauges, torque wrench, multimeter, potentially specialized Yamaha diagnostic tools (manual may list specifics).
Engine Type:
Four-stroke, liquid-cooled, SOHC
Bore X Stroke:
70.0 mm x 64.3 mm (typical, verify with manual)
Compression Ratio:
10.0:1 (typical, verify with manual)
Cylinder Arrangement:
Single-cylinder
Horsepower:
Approximately 20-22 HP @ 7500 RPM (verify with manual)
Torque:
Approximately 21-23 Nm @ 6000 RPM (verify with manual)
Fuel Delivery:
Carburetor (specific model may vary, typically VM28 or similar, consult manual for exact type and jetting)
Fuel Type:
Unleaded gasoline, 91 octane or higher recommended
Air Intake:
Airbox with foam or paper element filter (manual specifies cleaning/replacement intervals and procedures)
Oil Type:
Yamaha recommends SAE 10W-30 API SG or higher (consult manual for specific viscosity and API classification)
Oil Capacity:
Approximately 1.5-1.7 liters with filter change (verify with manual)
Engine Oil Change:
Every 4,000 km or 6 months, whichever comes first (verify with manual)
Air Filter Inspection Cleaning:
Every 4,000 km or 6 months (verify with manual)
Spark Plug Replacement:
Every 8,000 km or 12 months (verify with manual, specific plug type and gap are critical)
Brake Fluid Replacement:
Every 2 years or as needed based on condition (verify with manual, DOT 4 fluid recommended)
Coolant Replacement:
Every 2 years or 40,000 km, whichever comes first (verify with manual, use Yamaha Coolant or equivalent ethylene glycol based)
Final Drive Oil Change:
Every 8,000 km or 12 months (verify with manual, specific oil type required)
Engine Oil Specification:
SAE 10W-30 API SG or higher, JASO MA
Brake Fluid Specification:
DOT 4
Coolant Specification:
Ethylene glycol based, anti-freeze/anti-corrosion (Yamaha Blue or equivalent)
Final Drive Oil Specification:
Yamalube Gear Oil or equivalent API GL-4, SAE 80W-90
Common Wear Items:
CVT belt, brake pads, tires, suspension seals (fork seals), exhaust system integrity, starter motor brushes (check manual for diagnostics)
Potential Electrical Issues:
Faulty rectifier/regulator, stator winding issues, aging wiring harness connections (manual provides diagnostic procedures)