The VJF125 Roadsport and Roadwin R are sporty 125cc motorcycles designed for riders seeking an aggressive aesthetic and agile performance in the entry-level sportbike segment. These models, manufactured by a South Korean company with a broad history in motorized vehicles, offer a compelling package within their class. They are characterized by their liquid-cooled, DOHC single-cylinder engines, typically around 124cc, delivering a spirited riding experience suitable for both commuting and recreational use. The engineering quality focuses on providing reliable performance and a sporty riding posture, making them competitive against other 125cc offerings from major manufacturers. This comprehensive workshop service repair manual provides essential information for the maintenance, troubleshooting, and repair of VJF125 Roadsport and Roadwin R models. It covers all major systems, including the engine and drivetrain, chassis, suspension, brakes, wheels, and electrical systems. Detailed procedures for scheduled maintenance, routine inspections, adjustments, and component disassembly/reassembly are included, along with in-depth troubleshooting guidance for common issues. Technical specifications, torque values, and diagnostic information are also provided, ensuring that owners and technicians have the necessary resources to keep these motorcycles in optimal condition and ensure their longevity. 🏷️ Basic Information Identification Make: Daelim Model: VJF125 Roadsport / Roadwin R Model Variants: VJF125 Roadsport, Roadwin R Codes Engine Code Designation: Likely 125cc liquid-cooled DOHC single-cylinder, specific Daelim internal designation not provided 👋 Introduction Market Position Segment: Sport-oriented 125cc motorcycle, competing in the entry-level sportbike and commuter motorcycle segments. Competitive Analysis Key Competitors: Models from manufacturers like Yamaha (YZF-R125, MT-125), Honda (CBR125R), KTM (RC125, Duke 125), Suzuki (GSX-R125), and other Asian brands offering similar displacement sport or naked bikes. Key Features Of Vehicle Design Philosophy: Aims to provide a sporty riding experience with aggressive styling, agile handling, and a focus on performance within the 125cc class. Manual Value Proposition: Essential for owners and technicians to maintain, troubleshoot, and repair the Daelim VJF125 Roadsport/Roadwin R efficiently, ensuring optimal performance and longevity. 📋 Manual Details Coverage Areas Primary Coverage: Comprehensive service, repair, and maintenance for Daelim VJF125 Roadsport and Roadwin R models. Page Count Estimated Page Count: Variable, typical for workshop manuals of this scope often range from 200-400 pages, but exact count not specified in product info. Manual Type Type: Workshop Service Repair Manual Language Language: Likely English (common for export/international markets), specific language not confirmed in product info. Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine And Drivetrain: Engine disassembly, assembly, inspection, maintenance, troubleshooting (124cc 1-cylinder, 4-cycle, liquid-cooled, DOHC), lubrication system, fuel system ( carburetion or EFI, depending on specific sub-model variant), cooling system. Chassis And Suspension: Frame, front fork, rear shock absorber, swingarm, wheel bearings, steering system. Brakes And Wheels: Brake system (front and rear calipers, master cylinders, brake lines, fluid), wheel and tire service, rim inspection. Electrical System: Ignition system, lighting, starter motor, battery, charging system, wiring diagrams, fuses. Bodywork And Controls: Fairings, body panels, seat, handlebars, levers, cables, footpegs, exterior parts. Procedures Included Scheduled Maintenance: Oil changes, filter replacements, chain adjustment, spark plug inspection/replacement, coolant checks, brake fluid replacement, valve clearance checks. Routine Inspections: Pre-ride checks, fluid level inspections, tire pressure checks, brake pad wear checks, chain slack checks. Adjustments: Carburetor idle speed and mixture (if applicable), clutch free play, throttle cable, chain tension, brake levers. Troubleshooting: Diagnostic procedures for common engine, electrical, and chassis issues. Disassembly And Reassembly: Detailed step-by-step instructions for major component removal, overhaul, and reinstallation. Technical Depth Depth Of Information: Comprehensive, covering everything from basic maintenance to advanced engine rebuilds and troubleshooting. Includes torque specifications, clearance measurements, and diagnostic flowcharts. 📊 Manual Specifications File Format File Type: PDF Searchable: Typically PDF manuals are searchable, allowing users to quickly find specific information. Print Quality Printability: Designed for digital viewing and can be printed. Quality of print depends on the user's printer. Binding Type Binding Format For Download: Not applicable for PDF download, but typically workshop manuals are bound with spiral or perfect binding for durability when printed. Paper Type Paper Quality For Print: Not applicable for PDF download, but professional workshop manuals often use durable, glossy paper to withstand workshop conditions. ⚙️ Engine Specifications Primary Engine Engine Type: 1-cylinder, 4-stroke Displacement: 124 cc Cooling System: Liquid-cooled Valve Train: DOHC (Double Overhead Camshaft) Performance Bore X Stroke: Specific dimensions not provided, but typical for this displacement. Compression Ratio: Specific ratio not provided, but typically around 10.5:1 to 11.5:1 for this class. Horsepower: Typically around 14-15 PS (approx. 10.3-11 kW) at 9,000-10,000 RPM, depending on market restrictions. Torque: Typically around 10-12 Nm (approx. 7.4-8.9 lb-ft) at 7,000-8,000 RPM. Fuel System Fuel Delivery: Likely fuel injection (EFI) for modern variants, or possibly carburetor for earlier/specific markets. Manual would detail which system applies. Fuel Type: Unleaded gasoline Lubrication System Oil Type Specification: Likely JASO MA or MA2 certified motorcycle oil, viscosity grade 10W-40 or 15W-50. Manual will specify exact API classification...