The YQ50 is a lightweight scooter renowned for its sporty styling, agile handling, and hallmark reliability, making it an excellent choice for urban commuting and recreational use. Part of the long-standing Jog scooter lineage, the YQ50 typically features a 49.3cc two-stroke engine, known for its zippy performance in the 50cc class. Its design prioritizes rider ergonomics for comfortable city navigation, complemented by a steel underbone frame for structural integrity and a front disc brake paired with a rear drum brake for dependable stopping power. This comprehensive manual collection provides essential information for both owners and technicians, encompassing a Factory Repair Service Manual and a Factory Operator's Owner's Instruction Manual. It details maintenance procedures, from routine oil changes and filter replacements to more involved tasks like spark plug and brake fluid changes. Furthermore, the manual offers in-depth guidance on troubleshooting common issues, step-by-step repair instructions for all major systems including the engine, transmission, brakes, and electrical components, as well as necessary adjustments. Technical specifications, wiring diagrams, and safety guidelines are also thoroughly covered, ensuring the YQ50 can be maintained and repaired effectively. 🏷️ Basic Information Identification Make: Yamaha Model: YQ50 Product Type: Manual Collection (Repair Service & Owner's) Format: PDF Download 👋 Introduction Market Position Segment: Lightweight Scooter (50cc class), popular for urban commuting and recreational use. Competitive Analysis Competitors: Competes with other 50cc scooters from brands like Honda (Dio, Today), Aprilia (SR50), Kymco, and Suzuki (Address). Key Features Vehicle Appeal: Known for Yamaha's reliability, fuel efficiency, sporty styling, and agile handling in urban environments. 📋 Manual Details Coverage Areas Covered Manuals: Repair Service Manual, Operators Owners Instruction Manual Page Count Estimated Total Pages: Variable (typically 200-400 for each manual, total 400-800) Manual Type Service Manual Type: Factory Repair Service Manual Owner Manual Type: Factory Operator's Owner's Instruction Manual Language Language: English Format File Format: PDF (Improved: Bookmarks, Searchable Text, Index) 📖 Manual Coverage Systems Covered 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. Procedures Included 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. Technical Depth Depth: Comprehensive (from basic owner's maintenance to complete engine rebuilds and advanced electrical diagnostics). 📊 Manual Specifications File Format File Type: PDF (Portable Document Format) Print Quality Quality Description: Improved PDF quality, ensuring clear text, diagrams, and images. Searchable text and hyperlinked bookmarks for easy navigation. Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine 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) Performance 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) Fuel System 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) Lubrication Oil System: Autolube (automatic oil injection system). 2-Stroke Oil Type: High-quality 2-stroke scooter oil (API TC, JASO FD or equivalent). 🔧 Transmission Standard Transmission Type: Automatic Continuously Variable Transmission (CVT). Drive System: V-belt drive with automatic centrifugal clutch. Features 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. 📐 Dimensions Exterior 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) Weights Dry Weight: Approx. 77 kg (169.8 lbs) Wet Weight: Approx. 84 kg (185.2 lbs) (including fluids and full tank) Cargo Underseat Storage: Sufficient space for a helmet and small items. 🛡️ Safety Features Ratings Crash Test Results: N/A (Lightweight scooters typically not subject to automotive-style crash testing). Focus on rider safety through design and maintenance. Active Features Braking System: Front disc brake, rear...