Market Segment:
Entry-level scooter, commuter vehicle
Target Audience:
New riders, urban commuters, light recreational use
Key Competitors:
Honda Ruckus/Dio, Suzuki Address, Kymco Agility
Vehicle Focus:
Reliability, fuel efficiency, ease of operation, classic styling
Manual Value Proposition:
Provides comprehensive DIY repair and maintenance capabilities, reducing reliance on authorized service centers.
Engine Service:
Complete overhaul, inspection, disassembly, assembly, tuning, lubrication
Fuel System:
Carburetor service, fuel pump, fuel lines, fuel tank maintenance
Ignition System:
CDI unit, spark plug, ignition timing, troubleshooting
Cooling System:
Air cooling system inspection and cleaning
Exhaust System:
Muffler and pipe inspection and maintenance
Transmission:
CVT (Continuously Variable Transmission) service, belt inspection, clutch, torque converter
Brakes:
Front and rear brake systems, hydraulic components, drum brake servicing, brake fluid specifications
Suspension:
Front fork inspection and overhaul, rear shock absorber and swingarm service
Steering:
Handlebar, steering stem, bearing inspection and adjustment
Electrical System:
Wiring diagrams, battery maintenance, lighting, charging system, starter motor, fuses
Bodywork And Frame:
Panel removal, seat, fairings, chassis inspection
Wheels And Tires:
Tire pressure, wheel bearing service, rim inspection
Preventative Maintenance:
Scheduled maintenance tasks, lubrication points, fluid checks and changes
Troubleshooting:
Diagnostic charts, symptom-based problem solving for common issues
Disassembly Assembly:
Step-by-step instructions for major component removal and installation
Torquing Specifications:
All critical fastener torque values provided
Adjustments:
Carburetor, throttle, brake adjustments
Diagnostic Capability:
Detailed diagnostic procedures for electrical and mechanical systems
Rebuild Instructions:
Comprehensive instructions for engine and transmission rebuilds
Wiring Diagrams:
Complete and detailed electrical wiring schematics
Engine Type:
2-stroke, air-cooled, single-cylinder
Displacement:
49 cc (Cubic Centimeters)
Bore X Stroke:
39.0 mm x 41.4 mm (typical for this engine family)
Compression Ratio:
7.4 : 1 (typical for this engine family)
Starter System:
Electric and Kick Starter
Horsepower Output:
Approx. 5.0-5.5 HP @ 7,000 RPM (estimated, as exact figures can vary by region/tuning)
Torque Output:
Approx. 4.0-4.5 Nm @ 6,500 RPM (estimated)
Fuel Delivery:
Carburetor
Carburetor Model:
Mikuni VM12-262 (typical for this model)
Fuel Type:
Unleaded gasoline (minimum 87 octane recommended)
Fuel Tank Capacity:
4.0 Liters (approx. 1.06 Gallons)
Engine Oil Type:
Yamalube 2-stroke oil or equivalent API TC, JASO FD certified
Transmission Fluid:
Gear oil SAE 80W-90 (for final drive)
Coolant Type:
N/A (Air-Cooled)
Transmission Type:
Automatic CVT (Continuously Variable Transmission)
Drive System:
V-belt drive to rear wheel
Clutch Type:
Centrifugal, Dry type
Gear Reduction:
Primary and secondary reduction gears in gearbox
Cv Belt Part Number:
5NW-17641-00-00 (typical, verify in manual)
Overall Length:
1740 mm (approx. 68.5 in)
Overall Width:
675 mm (approx. 26.6 in)
Overall Height:
1040 mm (approx. 40.9 in)
Wheelbase:
1205 mm (approx. 47.4 in)
Ground Clearance:
100 mm (approx. 3.9 in)
Dry Weight:
73 kg (approx. 161 lbs)
Wet Weight:
76 kg (approx. 168 lbs) (estimated, with fluids)
Maximum Load Capacity:
150 kg (approx. 330 lbs) (rider and cargo)
Crash Test Data:
N/A (Scooter; typically not subject to automotive crash testing standards)
Braking System Type:
Front: Drum, Rear: Drum
Lighting:
Halogen headlight, taillight, brake light, turn signals
Frame Construction:
Steel underbone frame
Parking Brake:
Handlebar-mounted parking brake lever
Initial Service:
Check and adjust at 600 miles (1000 km)
Engine Oil Change Interval:
Check oil level frequently, top-up as needed. For 2-stroke, oil is mixed with fuel or injected.
Gear Oil Change Interval:
Every 3,000 miles (5,000 km) or annually
Air Filter Cleaning:
Clean every 1,000 miles (1,500 km), replace as needed
Spark Plug Replacement:
Inspect every 1,000 miles (1,500 km), replace every 2,000 miles (3,000 km) or as needed
Cvt Belt Inspection:
Inspect every 2,000 miles (3,000 km), replace when worn or damaged
Gear Oil Capacity:
Approx. 0.1 Liters (100 ml)
Common Wear Items:
CVT belt, brake shoes, tires, spark plug, air filter, carburetor jets due to fuel quality.
Carburetor Cleaning:
Tendency for carburetors to clog if fuel is left sitting or if water contamination occurs.
Starting Problems:
Can be attributed to old spark plugs, dirty air filters, or carburetor issues.
Manufacturer Origins:
Yamaha Motor Company, founded in 1955 in Japan, renowned for musical instruments and later for motorcycles and marine products.
Vino Lineage:
The Vino series began with the 2-stroke VINO 50 (YA50) in the late 1980s, evolving through various iterations. The YJ50RN is part of the modern retro-styled Vino family, influenced by classic European scooters.
Design Philosophy:
Combines retro aesthetics with modern scooter functionality, emphasizing usability and character.
Production Period:
2001-2003 (specific to this manual's coverage)
Manufacturing Location:
Likely manufactured in Japan or Taiwan under Yamaha's supervision.
