This manual covers the 2010 Ninja 250R (EX250-J), a popular entry-level sport motorcycle renowned for its agile handling, fuel efficiency, and accessible performance. Building on a legacy of engineering, the Ninja 250R offers a full fairing sportbike design, making it an ideal choice for urban commuting and new riders. Its 249 cc parallel-twin engine, paired with a 6-speed transmission, delivers a smooth and engaging riding experience, embodying a commitment to quality and rider enjoyment within its segment. This comprehensive service repair manual provides detailed instructions for the full service, repair, and maintenance of your 2010 Ninja 250R. It covers all essential systems, including the engine, transmission, chassis, electrical components, fuel system, brakes, and suspension. With step-by-step procedures, diagnostic flowcharts, and technical specifications, this manual is an indispensable resource for owners and technicians seeking to ensure optimal performance, reliability, and longevity of the vehicle. 🏷️ Basic Information Identification Make: Kawasaki Model: Ninja 250R Model Code: EX250 Year: 2010 Vehicle Type: Sport Motorcycle Generation Generation Code: EX250-J 👋 Introduction Market Position Segment: Entry-level sportbike, popular for new riders and urban commuting Competitive Analysis Competitors: Honda CBR250R, Yamaha YZF-R25 (later models), Suzuki GS500F (similar displacement class) Key Features Performance Focus: Agile handling, fuel efficiency, accessible power delivery Design: Full fairing sportbike styling 📋 Manual Details Coverage Areas General Coverage: Full Service Repair and Maintenance Specific Systems Covered: Engine, Chassis, Electrical, Fuel System, Ignition, Cooling, Lubrication, Transmission, Suspension, Brakes, Frame, Bodywork, Troubleshooting, Diagnostics Page Count Estimated Pages: 300-500 Manual Type Type: Service Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Detailed overhaul, top-end, bottom-end, valve clearance, timing, lubrication, cooling systems Transmission: Clutch, gearbox removal and installation, gear inspection, shift drum and fork servicing Electrical: Wiring diagrams, lighting, ignition system, charging system, starting system, battery, fuses, relays Fuel System: Carburetor assembly and disassembly, fuel pump (if applicable), fuel lines, fuel tank servicing Brakes: Front and rear brake systems, caliper overhaul, brake pad replacement, hydraulic system bleeding, master cylinder servicing Suspension Steering: Front fork disassembly, servicing, oil replacement; rear shock absorber removal and installation; steering head bearing adjustment and replacement Frame Bodywork: Frame inspection, fairing removal and installation, seat removal, fuel tank removal, general body panel work Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, chain adjustment, tire pressure, brake fluid checks Troubleshooting: Diagnostic flowcharts, common problem identification, electrical system troubleshooting, engine performance issues Repair Rebuild: Step-by-step guides for major component overhaul and replacement Diagnostics: Electrical system testing, sensor checks, ignition timing adjustments Technical Depth Depth: Comprehensive: from routine maintenance to complete engine and transmission rebuilds, including detailed specifications and torque values 📊 Manual Specifications File Format File Type: PDF Searchable: Yes (typically) Print Quality Quality: High resolution, suitable for printing Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Type: 4-stroke, liquid-cooled, DOHC, parallel-twin Displacement: 249 cc Bore X Stroke: 62.0 x 41.2 mm Compression Ratio: 12.8:1 Performance Horsepower Peak: Approximately 30-32 HP @ 10,500 rpm (manufacturer stated, actual may vary) Torque Peak: Approximately 16-18 lb-ft @ 8,000 rpm (manufacturer stated, actual may vary) Fuel System Carburetor: Two Keihin CVK30 carburetors Fuel Capacity: 18.0 L (4.8 US gal) Ignition Type: Digital CDI Cooling System Type: Liquid-cooled Lubrication System: Forced lubrication, wet sump 🔧 Transmission Standard Type: 6-speed constant mesh Optional Transmission Options: N/A (Manual transmission only) Features Clutch: Wet, multiple-disc Final Drive: Sealed chain 📐 Dimensions Exterior Overall Length: 2,000 mm (78.7 in) Overall Width: 750 mm (29.5 in) Overall Height: 1,120 mm (44.1 in) Wheelbase: 1,370 mm (53.9 in) Ground Clearance: 155 mm (6.1 in) Seat Height: 780 mm (30.7 in) Weights Curb Weight: 172 kg (379 lbs) Front Tire Size: 110/70-17 M/C 54H Rear Tire Size: 130/70-17 M/C 62S Wheel Bolt Pattern: N/A (Motorcycle specific hub) 🛡️ Safety Features Ratings Safety Ratings: Motorcycle safety is assessed differently than automobiles; primarily focuses on braking performance and handling characteristics. No formal crash test ratings like cars. Active Features Braking System: Dual hydraulic disc front brake, single hydraulic disc rear brake ABS: Optional (ABS variant available in some markets) Passive Features Lighting: Halogen headlamp, LED tail light 💡 Technology Features Infotainment Features: N/A (Basic motorcycle instrumentation) Driver Assistance Features: ABS (Optional on some models) Connectivity Features: N/A 🔧 Maintenance Service Intervals Oil Change Interval: Every 6,000 km (3,700 miles) or 6 months Air Filter Check: Every 6,000 km (3,700 miles) Spark Plug Replacement: Every 12,000 km (7,500 miles) or 12 months Valve Clearance Check: Every 12,000 km (7,500 miles) or 12 months Brake Fluid Replacement: Every 24,000 km (15,000 miles) or 24 months Fluid Specifications Engine Oil Type: SAE 10W-40 API SG or higher, JASO MA Engine Oil Capacity: 2.2 L (2.3 US qt) with filter change Coolant Type: Permanent type (ethylene glycol based) antifreeze with distilled water (50:50 mixture)...