The Ninja 250R (EX250K) is an entry-level sportbike, part of the renowned Ninja family, produced from 2008 to 2012. It is celebrated for its aggressive styling, inspired by larger Ninja models, offering manageable power and fuel efficiency, making it an excellent choice for new riders and urban commuting. Key features include a liquid-cooled, 4-stroke, DOHC parallel-twin engine with a displacement of 249 cc, delivering approximately 30-32 hp, and a 6-speed transmission. The Ninja 250R is recognized for its value, reliability, and user-friendly ergonomics, consistently receiving positive feedback in reviews. This comprehensive workshop service manual provides detailed information for the Ninja 250R (EX250K) covering the model years 2008 through 2012. It encompasses all essential aspects for maintenance, repair, and technical understanding, including engine overhaul, fuel injection, transmission, chassis, brakes, and electrical systems. The manual offers step-by-step procedures for scheduled maintenance, troubleshooting common issues, and complete component repair, alongside critical technical data such as torque specifications and fluid capacities. This resource is designed to assist owners, mechanics, and technicians in effectively maintaining and servicing their vehicle. 🏷️ Basic Information Identification Make: Kawasaki Model: Ninja 250R Generation Generation Name: EX250K Codes Chassis Code: EX250K 👋 Introduction Market Position Segment: Entry-level sportbike, popular for new riders and urban commuting. Competitive Analysis Competitors: Honda CBR250R, Yamaha YZF-R3 (later model comparison), Ninja 300 (later model). Key Features Features: Aggressive styling inspired by larger Ninja models, manageable power, fuel efficiency, user-friendly ergonomics. 📋 Manual Details Coverage Areas Covered Years: 2008, 2009, 2010, 2011, 2012 Page Count Estimated Pages: Approximately 400-500 pages (typical for this type of manual) Manual Type Type: Workshop Service Manual / Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Complete engine overhaul, fuel injection system, ignition system, lubrication, cooling system, cylinder head, pistons, crankshaft, valves. Transmission: Clutch operation, gearbox inspection and repair, shift mechanism, final drive (chain and sprockets). Chassis: Frame, suspension (front forks, rear shock absorber), steering system, wheels, bearings. Brakes: Front and rear brake systems (hydraulic disc brakes), caliper inspection, pad replacement, bleeding procedures, master cylinders. Electrical: Wiring diagrams, lighting system, charging system (alternator, battery), starting system (starter motor), ignition system components, fuses, relays, electronic control unit (ECU) functions. Bodywork And Trim: Fairing removal and installation, seat, fuel tank, handlebars, body panel fasteners. Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, chain adjustment, spark plug service, brake fluid replacement, coolant flush. Troubleshooting: Diagnostic charts for common problems, error code interpretation (if applicable), step-by-step diagnostic procedures. Repair: Complete disassembly and reassembly instructions for all major components, component testing and calibration. Technical Data: Torque specifications for all fasteners, engine clearances, electrical system specifications, fluid capacities. Technical Depth Depth: Comprehensive. Covers basic maintenance to complete engine and transmission rebuilds, advanced electrical diagnostics, and detailed chassis component service. 📊 Manual Specifications File Format Quality: High-resolution PDF, typically with searchable text for easy navigation. Print Quality Printability: Designed for clear printing of individual pages or sections. Binding Type Binding: N/A (Digital PDF Download) Paper Type Paper Quality: N/A (Digital PDF Download) ⚙️ Engine Specifications Primary Engine Type: Liquid-cooled, 4-stroke, DOHC, parallel-twin Displacement: 249 cc (15.2 cu in) Bore X Stroke: 62.0 x 41.2 mm (2.44 x 1.62 in) Compression Ratio: 12.4:1 Performance Horsepower Est: Approximately 30-32 hp @ 10,500 rpm Torque Est: Approximately 16-17 lb-ft @ 8,500 rpm Fuel System Fuel Delivery: Digital Fuel Injection (DFI) with dual 32mm throttle bodies Fuel Tank Capacity: 18 L (4.8 US gal) Ignition Ignition Type: TCBI (Transistor Controlled Ignition) with electronic advance Lubrication Lubrication System: Forced lubrication, wet sump 🔧 Transmission Standard Type: 6-speed constant mesh, return type Clutch: Wet, multiple-disc, cable actuated Features Final Drive: Sealed chain drive Fluid Specifications Transmission Oil Type: Kawasaki Genuine M82A or equivalent API GL-4, SAE 80W-90 hypoid gear oil Transmission Oil Capacity: Approx. 1.4 L (1.5 US qt) 📐 Dimensions Exterior Length: 2,000 mm (78.7 in) Width: 760 mm (29.9 in) Height: 1,110 mm (43.7 in) Wheelbase: 1,390 mm (54.7 in) Ground Clearance: 155 mm (6.1 in) Weights Curb Weight: Approximately 168 kg (370.4 lbs) Seat Height: 780 mm (30.7 in) Wheels And Tires Front Tire: 110/70-17 M/C 54S Rear Tire: 130/70-17 M/C 62S Front Wheel Type: 17-inch cast aluminum Rear Wheel Type: 17-inch cast aluminum 🛡️ Safety Features Ratings ABS Availability: Optional ABS (Anti-lock Braking System) available on some models. Active Features Braking System: Dual-piston caliper front disc brake, single-piston caliper rear disc brake. Passive Features Lighting: Halogen headlight, LED taillight. 💡 Technology Features Infotainment Instrument Cluster: Analog tachometer with a multi-function LCD display, including speedometer, odometer, trip meters, fuel gauge, and clock. Driver Assistance ABS: Optional ABS for enhanced braking control. Connectivity Usb Charging: Not typically equipped with factory USB charging ports. 🔧 Maintenance Service Intervals Oil Change Interval: Every 6,000 km (3,700 miles) or 6 months, whichever comes first. (Consult manual for...