Segment:
Lightweight Scooter (50cc class), popular for urban commuting and recreational use.
Competitors:
Competes with other 50cc scooters from brands like Honda (Dio, Today), Aprilia (SR50), Kymco, and Suzuki (Address).
Vehicle Appeal:
Known for Yamaha's reliability, fuel efficiency, sporty styling, and agile handling in urban environments.
Covered Manuals:
Repair Service Manual, Operators Owners Instruction Manual
Estimated Total Pages:
Variable (typically 200-400 for each manual, total 400-800)
Service Manual Type:
Factory Repair Service Manual
Owner Manual Type:
Factory Operator's Owner's Instruction Manual
File Format:
PDF (Improved: Bookmarks, Searchable Text, Index)
Engine:
Complete engine overhaul, internal components, cooling, lubrication, fuel, ignition, starting, exhaust.
Transmission:
Automatic transmission (CVT) operation, maintenance, adjustment, and repair.
Brakes:
Hydraulic brake system, disc brake components, fluid maintenance, bleeding procedures, adjustments.
Electrical:
Wiring diagrams, lighting system, ignition system, starting system, charging system, battery, fuses, relays, switches, control units.
Chassis And Suspension:
Front fork, rear shock absorber, swing arm, steering system, wheel bearings, tire specifications, wheel removal/installation.
Bodywork And Trim:
Panel removal and installation, seat, fairings, body panels, storage compartment, lighting assemblies.
Maintenance:
Regular service intervals, oil changes, filter replacements, spark plug replacement, brake pad inspection, tire pressure checks, battery care.
Troubleshooting:
Diagnosis of common problems, symptom identification, diagnostic flowcharts, electrical system diagnostics.
Repair:
Step-by-step instructions for component removal, repair, and reassembly of all major systems.
Adjustments:
Carburetor adjustment, brake lever adjustment, throttle cable adjustment, steering head bearing adjustment.
Depth:
Comprehensive (from basic owner's maintenance to complete engine rebuilds and advanced electrical diagnostics).
Engine Type:
2-stroke, single-cylinder, liquid-cooled (specific to YQ50 'Jog RR' variants, air-cooled on some 'Jog' models).
Displacement:
49.3 cc (approximate, can vary slightly by sub-model/region)
Bore X Stroke:
39.0 mm x 41.4 mm (typical)
Compression Ratio:
7.4:1 (typical)
Horsepower:
Approx. 6.5 - 7.0 HP @ 7000 RPM (varies by market and specific YQ50 variant)
Torque:
Approx. 7.0 Nm @ 6500 RPM (varies by market and specific YQ50 variant)
Carburetor:
Mikuni VM12 or similar 12mm carburetor (specific model may vary).
Fuel Type:
Unleaded gasoline (Octane rating typically 91 or higher recommended).
Fuel Tank Capacity:
Approx. 5.0 Liters (1.3 US gal)
Oil System:
Autolube (automatic oil injection system).
2-Stroke Oil Type:
High-quality 2-stroke scooter oil (API TC, JASO FD or equivalent).
Transmission Type:
Automatic Continuously Variable Transmission (CVT).
Drive System:
V-belt drive with automatic centrifugal clutch.
Gear Ratios:
Continuously variable, specific ratio range detailed in service manual.
Transmission Fluid:
N/A (CVT system does not use separate transmission fluid; gear oil for final drive).
Final Drive Type:
Gear drive.
Final Drive Oil Type:
Yamalube Gear Oil or equivalent SAE 80 API GL-4.
Length:
Approx. 1700 mm (66.9 in)
Width:
Approx. 675 mm (26.6 in)
Height:
Approx. 1025 mm (40.4 in)
Wheelbase:
Approx. 1210 mm (47.6 in)
Dry Weight:
Approx. 77 kg (169.8 lbs)
Wet Weight:
Approx. 84 kg (185.2 lbs) (including fluids and full tank)
Underseat Storage:
Sufficient space for a helmet and small items.
Crash Test Results:
N/A (Lightweight scooters typically not subject to automotive-style crash testing). Focus on rider safety through design and maintenance.
Braking System:
Front disc brake, rear drum brake (standard configuration for many YQ50 models).
Lighting:
Headlight, taillight, brake light, turn signals for visibility.
Frame Construction:
Steel underbone frame for structural integrity.
Rider Ergonomics:
Designed for comfortable, upright riding position for city use.
Dashboard:
Analog speedometer, fuel gauge (on some models), odometer, indicator lights (turn signals, high beam, oil warning).
ABS:
N/A (Anti-lock Braking System is not a standard feature on the YQ50).
Bluetooth Usb:
N/A (Basic scooter technology, no modern connectivity features).
Oil Change Interval:
Every 3,000 km (1,800 miles) or annually, whichever comes first. Specific interval for 2-stroke oil tank refill depends on usage.
Air Filter Cleaning:
Every 1,000 km (600 miles), clean and re-oil if necessary.
Spark Plug Replacement:
Every 4,000 km (2,500 miles) or as needed.
Brake Fluid Change:
Every 2 years or as specified by the manual.
Engine Oil Capacity:
N/A (2-stroke, uses pre-mix or autolube).
Final Drive Oil Capacity:
Approx. 0.12 Liters (0.03 US gal)
Common Wear Items:
Drive belt, clutch shoes, rollers in variator, brake pads/shoes, tires, spark plugs, carburetor jets.
Potential Problems:
Carburetor clogging due to infrequent use, electrical connection corrosion, worn suspension components over time.
Manufacturer:
Yamaha Motor Company, a globally recognized leader in motorcycles, scooters, and recreational vehicles.
Jog Series:
The YQ50 is part of Yamaha's long-standing 'Jog' scooter lineage, known for its sporty character and performance in the 50cc segment.
Production Years:
Generally produced from the late 1990s through the 2000s and into the 2010s, with variations in specific markets and designations (e.g., YQ50 Jog RR, YQ50BW BW's).
Manufacturing Locations:
Primarily manufactured in Italy (for European markets) and Japan.
Brand Awards:
Yamaha consistently receives recognition for product quality, reliability, and innovation across its entire product range.
Customer Satisfaction:
Yamaha scooters generally boast high customer satisfaction ratings due to their durability and low maintenance costs.
Emissions Standards:
Compliant with relevant European (e.g., Euro 2, Euro 3 depending on year) or regional emissions standards.
