The Yamaha YZF-R125, also known as the R125, is a popular entry-level sportbike introduced in 2008. Inspired by Yamaha's renowned R-series supersport family, it offers aggressive styling and sporty ergonomics designed for new riders, commuters, and enthusiasts seeking a stylish, performance-oriented motorcycle with manageable power. Powered by a liquid-cooled, four-stroke, 124.7 cc single-cylinder engine with fuel injection and a 6-speed transmission, the R125 delivers approximately 15 PS, making it compliant with A1 license regulations in many markets. Its engineering emphasizes rigidity and handling, featuring a Deltabox frame, hydraulic disc brakes, and a digital LCD instrument panel. This comprehensive 353-page Workshop Service Manual provides detailed guidance for the maintenance, repair, and overhaul of Yamaha YZF-R125 models produced between 2008 and 2015. It covers all essential systems, including the engine (RE06), fuel, ignition, cooling, exhaust, transmission, chassis, brakes, wheels, tires, and electrical systems. The manual includes step-by-step procedures for scheduled maintenance, troubleshooting common issues, component repair and replacement, and complete system overhauls. With its thorough technical specifications and diagnostic information, this manual is an indispensable resource for owners, mechanics, and technicians aiming to keep their R125 in optimal condition. 🏷️ Basic Information Identification Make: Yamaha Model: YZF-R125 Common Name: R125 Codes Engine Code Prefix: RE06 👋 Introduction Market Position Segment: Entry-level supersport/sportbike segment. Target Audience: New riders, commuters, and those seeking a stylish, sporty motorcycle with manageable power and running costs. Competitive Analysis Competitors: Honda CBR125R, KTM RC 125, Aprilia RS4 125, Suzuki GSX-R125 (later models). Key Features Design Philosophy: Inspired by Yamaha's larger R-series sportbikes, offering aggressive styling and sporty ergonomics. Engine Type: Liquid-cooled, four-stroke, single-cylinder, SOHC, 4-valve engine with fuel injection. 📋 Manual Details Coverage Areas Model Years Covered: 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 Page Count Total Pages: 353 Manual Type Type: Workshop Service Manual Language Language: English (presumed based on product description context, typical for international markets) Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Complete engine disassembly, assembly, troubleshooting, specifications, and tuning for the RE06 engine. Fuel System: Fuel injection system (throttle body, injectors, ECU, sensors), fuel pump, fuel lines, and evaporative emission control system. Ignition System: Ignition coil, spark plug, CDI unit, and related wiring. Cooling System: Radiator, coolant hoses, water pump, thermostat, and fan operation. Exhaust System: Exhaust manifold, catalytic converter (if applicable for the region), muffler, and lambda sensor (oxygen sensor). Transmission: Clutch operation and adjustment, gearbox disassembly and assembly, gear shift mechanism, and lubrication. Chassis: Frame inspection and repair, front forks (suspension, seals, oil), rear shock absorber, swingarm, and steering system. Brakes: Front and rear brake system diagnostics, caliper service, master cylinder overhaul, brake line replacement, and bleeding procedures. Wheels And Tires: Wheel bearing inspection and replacement, tire fitting and balancing, and recommended tire pressures. Electrical System: Wiring diagrams, battery maintenance, starter motor, alternator, lighting system, instrumentation, and sensors. Bodywork And Trim: Fairing removal and installation, seat, fuel tank, and minor body panel repairs. Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, chain adjustment, brake fluid replacement, and coolant flush. Troubleshooting: Diagnostic flowcharts for common problems, fault code interpretation (if applicable), and symptom-based repair guidance. Repair: Step-by-step instructions for component removal, repair, and reinstallation, including torque specifications. Overhaul: Detailed procedures for complete engine teardown and rebuild, transmission overhauls, and suspension rebuilds. Diagnostics: Procedures for diagnosing electrical faults, engine performance issues, and chassis-related problems. Technical Depth Depth: Comprehensive, covering basic to advanced repairs, diagnostics, and complete component overhauls, suitable for professional technicians and skilled DIY enthusiasts. 📊 Manual Specifications File Format Format: PDF (Portable Document Format) Print Quality Quality: High resolution scans, suitable for digital viewing and printing. Likely includes clear diagrams and text. Binding Type Binding: N/A (Digital PDF Download) Paper Type Type: N/A (Digital PDF Download) ⚙️ Engine Specifications Primary Engine Engine Code: RE06 Engine Type: Single-cylinder, liquid-cooled, 4-stroke, SOHC, 4-valve Displacement: 124.7 cc Bore X Stroke: 52.0 mm x 58.6 mm Compression Ratio: 11.2:1 Lubrication System: Wet sump Performance Peak Horsepower: Approximately 15 PS (11.0 kW) at 8,500 rpm (Europe/Asia specifications may vary slightly, often restricted for A1 license compliance) Peak Torque: Approximately 12 Nm (8.9 lb-ft) at 7,500 rpm (Europe/Asia specifications may vary slightly) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) Fuel Type: Unleaded gasoline, minimum 91 octane (RON) Fuel Tank Capacity: 13.8 Liters (3.65 US gallons) 🔧 Transmission Standard Type: Constant mesh, 6-speed Clutch: Wet, multiple-disc, manual operation Final Drive: Chain drive 📐 Dimensions Exterior Length: 1955 mm (77.0 in) Width: 705 mm (27.8 in) Height: 1055 mm (41.5 in) Seat Height: 815 mm (32.1 in) Wheelbase: 1355 mm (53.3 in) Weights Wet Weight: Approximately 138 kg (304 lbs) (fully fueled and ready to ride) 🛡️ Safety Features Ratings Crash Test Results: N/A (Motorcycles typically do not undergo standardized crash testing like cars) Active Features Braking System: Hydraulic disc brakes front and rear....