Introduction
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Market Position
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Segment:
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Maxi-scooter, known for its comfortable ride, practicality, and touring capabilities.
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Target Audience:
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Commuters, touring riders, and those seeking a practical, comfortable, and reliable step-through motorcycle.
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Competitive Analysis
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Competitors:
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Honda Silver Wing, Suzuki Burgman, Kawasaki J300 (later models), Kymco Downtown.
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Key Features
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Features:
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Spacious under-seat storage, comfortable seating position, aerodynamic fairing, automatic transmission (CVT), capable of highway speeds.
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Manual Coverage
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Systems Covered
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Engine:
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Complete engine overhaul, lubrication system, cooling system, fuel system (carburetor/injection), ignition system, exhaust system, emissions control.
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Transmission:
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CVT (Continuously Variable Transmission) operation, maintenance, disassembly, assembly, clutch, and drive belt inspection.
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Chassis:
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Frame, suspension (front fork, rear shock), steering, wheels, tires, braking system (front and rear discs), drive chain/belt.
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Electrical:
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Wiring diagrams, battery, charging system (stator, regulator/rectifier), lighting system, ignition switch, starter system, instruments, electronic control unit (ECU) if applicable.
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Bodywork:
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Fairings, seat, storage compartments, body panel removal and installation, fasteners.
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Procedures Included
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Routine Maintenance:
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Oil change intervals and specifications, filter replacement, air filter cleaning/replacement, spark plug inspection/replacement, brake pad inspection, chain/belt adjustment.
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Troubleshooting:
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Diagnostic charts for common problems, fault code interpretation (if applicable), electrical system diagnostics.
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Repair Overhaul:
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Engine disassembly and reassembly, transmission repair, suspension component replacement, brake system bleeding and repair, electrical component replacement.
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Special Tools:
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Identification of required Yamaha specialty tools for specific procedures.
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Technical Depth
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Depth:
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Comprehensive, covering everything from basic owner maintenance checks to complete engine teardowns and electrical system diagnostics. Equivalent to dealership workshop manuals.
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Engine Specifications
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Primary Engine
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Engine Type:
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Four-stroke, liquid-cooled, SOHC, 4-valve
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Displacement:
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249.7 cc
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Bore X Stroke:
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70.0 mm x 64.8 mm
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Compression Ratio:
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11.0:1
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Performance
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Horsepower:
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Approximately 20-22 hp @ 7500 rpm (subject to regional tuning)
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Torque:
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Approximately 21-23 Nm @ 6000 rpm (subject to regional tuning)
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Fuel System
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Fuel Delivery:
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Fuel Injection (EFI)
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Fuel Tank Capacity:
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15.0 Liters (3.96 US gallons)
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Lubrication
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Oil Type:
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Yamalube 4 (or equivalent) SAE 10W-40, API SG or higher, JASO MA
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Oil Capacity With Filter:
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1.70 Liters (1.80 US qt)
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Cooling System
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Coolant Type:
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Ethylene glycol-based coolant, 50/50 mix with distilled water
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Maintenance
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Service Intervals
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Engine Oil Change:
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Every 3,000 km (2,000 miles) or 6 months
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Oil Filter Replacement:
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At every oil change
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Air Filter Cleaning:
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Every 6,000 km (4,000 miles)
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Spark Plug Inspection:
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Every 10,000 km (6,000 miles)
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Transmission Belt Inspection:
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Every 10,000 km (6,000 miles)
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Fluid Specifications
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Engine Oil:
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Yamalube 4 (or equivalent) SAE 10W-40, API SG or higher, JASO MA
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Coolant:
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Ethylene glycol-based coolant, 50/50 mix with distilled water
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Brake Fluid:
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DOT 4
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Known Issues
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Common Wear Items:
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CVT belt, brake pads, tires, suspension bushings, spark plug, battery. The manual will detail inspection and replacement procedures for these.
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Potential Issues:
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While generally reliable, like any vehicle, issues can arise from lack of maintenance. The manual provides diagnostic steps for common starting problems, engine running issues, and braking performance degradation.
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