Market Segment:
Lightweight scooter, popular for urban commuting and recreational use.
Competitors:
Honda Metropolitan, Kymco Agility 50, SYM Fiddle II 50.
Design Philosophy:
Retro styling combined with modern scooter functionality, emphasizing reliability and ease of use.
Target Audience:
Beginner riders, urban commuters, individuals seeking an economical and stylish mode of transport.
Systems Covered:
Engine, Fuel System, Lubrication, Cooling, Electrical System, Chassis, Suspension, Brakes, Bodywork, Troubleshooting, Maintenance, Specifications, Wiring Diagrams
Page Count:
Comprehensive (exact page count not specified in product description, but implied to be dealership-level depth)
Manual Type:
Service Repair Manual
Language:
English (assumed based on typical market and product description)
Format:
Digital (PDF likely, as common for such manuals; dealership use implies a comprehensive digital format)
Engine System:
Detailed coverage of the 50cc engine, including disassembly, assembly, tuning, and component diagnostics.
Fuel And Lubrication:
Carburetor adjustments, fuel pump operation, oil pump service, and lubrication system maintenance.
Cooling System:
Air-cooling system analysis, fin cleaning, and related component checks.
Electrical System:
Ignition system, lighting, charging system, starter motor, and battery maintenance; includes detailed wiring diagrams.
Chassis And Suspension:
Frame inspection, front fork service, rear shock absorber replacement, steering system maintenance.
Braking System:
Front and rear brake inspection, adjustment, pad replacement, and fluid service.
Bodywork And Trim:
Panel removal, seat service, lighting fixture replacement, and cosmetic component maintenance.
Routine Maintenance:
Oil changes, filter replacement, spark plug service, tire pressure checks, chain/belt adjustment (if applicable).
Troubleshooting:
Diagnostic flowcharts and common problem identification for engine, electrical, and mechanical issues.
Engine Overhaul:
Complete engine disassembly, inspection of internal components (piston, rings, cylinder, crankshaft), reassembly, and break-in procedures.
Electrical Diagnostics:
Testing of ignition coils, stators, rectifiers, and starter solenoids; troubleshooting based on wiring diagrams.
Brake Service:
Brake bleeding procedures, caliper inspection, and rotor checks.
Suspension Service:
Fork seal replacement, oil level checks, and rear shock absorber mounting.
Carburetor Service:
Cleaning, adjustment, and rebuilding of the carburetor for optimal performance.
Depth Level:
Dealership-level, covering both basic maintenance and complete engine/component rebuilds.
Diagnostic Capability:
Advanced diagnostics with specific fault codes, symptom-based troubleshooting, and measurement specifications.
Engine Type:
4-stroke, SOHC, 2-valve, air-cooled
Bore X Stroke:
39.0 mm x 41.4 mm
Compression Ratio:
12.1:1 (Typical for this era and engine design)
Engine Id:
A137E (Typical Yamaha designation for this engine family)
Horsepower:
~3.7 HP @ 7500 RPM (Estimate for 50cc class)
Torque:
~3.0 lb-ft @ 6000 RPM (Estimate for 50cc class)
Fuel Delivery:
Carburetor (Mikuni VM14-1 series likely)
Fuel Type:
Unleaded Gasoline, Octane Rating 87 or higher
Fuel Tank Capacity:
4.5 Liters (approx.)
Overall Length:
Approx. 1750 mm (68.9 inches)
Overall Width:
Approx. 660 mm (26.0 inches)
Overall Height:
Approx. 1050 mm (41.3 inches)
Wheelbase:
Approx. 1265 mm (49.8 inches)
Dry Weight:
Approx. 78 kg (172 lbs)
Curb Weight:
Approx. 83 kg (183 lbs) with fluids
Maximum Load:
180 kg (397 lbs) including rider, passenger, and cargo
Front Tire Size:
3.00-10 42J
Rear Tire Size:
3.50-10 44J
Wheel Type:
Cast aluminum or steel (depending on exact model specification)
Wheel Size:
10 inches (front and rear)
Safety Standards:
Meets applicable DOT and EPA standards for 50cc scooters.
Braking System Type:
Front Drum Brake, Rear Drum Brake
Lighting:
Halogen Headlight, LED Taillight, Incandescent Turn Signals
Frame Construction:
Steel tube frame for rigidity and durability.
Parking Brake:
Lever-actuated parking brake (common on this model)
Instrument Cluster:
Analog speedometer, odometer, fuel gauge, indicator lights (turn signals, high beam, oil level).
Lighting System:
Ensures visibility with a bright headlight and clear signaling.
Charging System:
AC generator with DC regulator for battery charging.
Oil Change Interval:
Every 3,000 km or 6 months (typical, refer to manual for exact spec)
Air Filter Cleaning Interval:
Every 6,000 km or 12 months (typical)
Spark Plug Replacement Interval:
Every 10,000 km or 12 months (typical)
Transmission Oil Change Interval:
Every 6,000 km or 12 months (typical)
Engine Oil Type:
Yamalube 4 (or equivalent API SG or higher, SAE 10W-40) - check manual for precise spec
Engine Oil Capacity:
0.80 Liters (approx.)
Brake Fluid Type:
DOT 3 or DOT 4 (check manual for specific recommendation)
Common Wear Items:
Drive belt wear, carburetor gumming from infrequent use, weak starter motor brushes (common on older scooters).
Performance Degradation:
Loss of power due to clogged air filter, worn variator rollers, or incorrect carburetor jetting.
Storage Recommendations:
Fuel stabilizer for extended storage, battery tender usage, and proper tire inflation.
Yamaha Legacy:
Yamaha Motor Company, founded in 1955, has a rich history in motorcycle manufacturing known for innovation, performance, and reliability.
Vino Lineage:
The Vino series, known for its retro styling, has been a popular line of scooters for Yamaha since its introduction in the late 1990s, evolving with engine upgrades and design tweaks.
Manufacturing Location:
Primarily manufactured in Asia (e.g., Indonesia, Taiwan) by Yamaha or its partners.
