Segment:
Entry-level sportbike, lightweight sportbike, beginner motorcycle.
Target Audience:
New riders, commuters, riders seeking an affordable and fun performance motorcycle.
Key Competitors:
Honda CBR250R, Yamaha YZF-R25 (later models), Ninja 300 (successor).
Features:
Sleek aerodynamic styling, comfortable riding position for its class, reliable parallel-twin engine, user-friendly handling, cost-effective to own and operate.
Value:
Empowers owners and technicians to perform all necessary maintenance and repairs, saving time and money compared to dealership service. Provides the detailed technical information required for optimal performance and longevity.
Covered Years:
2008, 2009, 2010, 2011, 2012
Primary Regions:
Global (covers international variations where applicable)
Estimated Pages:
400-500 pages (typical for this model's comprehensive service manual)
Type:
Factory Service Manual / Repair Manual
Format:
PDF (Portable Document Format)
Engine:
Complete engine overhaul, disassembly, assembly, lubrication, cooling system, fuel system (carburetor tuning, cleaning, adjustments), ignition system, starting system, emission control systems.
Transmission:
Clutch operation and adjustment, gearbox inspection and repair, gear shifting mechanisms, lubrication.
Chassis:
Frame inspection and repair, front fork (suspension) overhaul and adjustment, rear shock absorber replacement and tuning, steering system, swingarm, bearings.
Brakes:
Hydraulic brake system, front and rear brake caliper service, master cylinder overhaul, brake fluid bleeding, pad replacement, disc inspection.
Electrical:
Wiring diagrams, battery maintenance, charging system (alternator, regulator/rectifier), lighting system (headlight, taillight, indicators), ignition system troubleshooting, instrument cluster, starter motor, fuses, relays.
Fuel System:
Carburetor disassembly, cleaning, and synchronization; fuel pump (if applicable to specific market versions), fuel lines, fuel tank.
Cooling System:
Radiator, coolant hoses, thermostat, water pump inspection and replacement.
Exhaust System:
Exhaust pipe and muffler inspection, gasket replacement.
Bodywork:
Fairing removal and installation, body panel repair and replacement, seat, fuel tank mounting.
Maintenance:
Routine maintenance checks, oil changes, filter replacements (oil, air), spark plug replacement, chain adjustment and lubrication, brake pad inspection, tire pressure checks, valve clearance adjustment.
Troubleshooting:
Diagnostic charts for common problems, symptom-based troubleshooting guides, electrical system diagnostics, engine performance issues.
Repair:
Detailed step-by-step repair procedures for all major mechanical and electrical components, including engine rebuilds, transmission overhauls, suspension repairs, brake system repairs, and electrical component replacement.
Disassembly Assembly:
Complete procedures for disassembling and reassembling all major vehicle systems and components.
Specifications Data:
Torque specifications for all fasteners, bearing clearances, piston ring gaps, valve timings, fluid capacities, electrical resistance values.
Depth:
Comprehensive, covering everything from basic maintenance to in-depth engine and electrical system diagnostics and repairs. Suitable for professional mechanics and advanced DIY enthusiasts.
Engine Type:
4-stroke, Liquid-cooled, DOHC, Parallel-twin
Displacement:
249 cc (15.2 cu in)
Bore X Stroke:
55.0 x 52.4 mm (2.17 x 2.06 in)
Compression Ratio:
11.6:1
Valve Actuation:
DOHC, 8 valves
Lubrication:
Forced lubrication, wet sump
Horsepower Approx:
Approx. 30-34 PS (22-25 kW) at 10,500 rpm (varies slightly by market and emission regulations)
Torque Approx:
Approx. 21 Nm (15.5 lb-ft) at 8,000 rpm (varies slightly)
Fuel Delivery:
Carburetor (e.g., Keihin CVK30 x 2)
Fuel Type:
Unleaded gasoline, minimum 87 octane
Fuel Tank Capacity:
18 Liters (4.8 US gal)
Crash Safety Ratings:
N/A (Motorcycle safety is typically assessed differently than automobiles, focusing on structural integrity and rider protection through design and aftermarket gear.)
Braking System:
Dual hydraulic disc front, single hydraulic disc rear. Optional ABS available in some markets.
Lighting:
Halogen headlight, LED taillight (depending on specific market configuration), turn signals.
Frame Construction:
High-tensile steel perimeter frame for rigidity and rider feedback.
Suspension Design:
Telescopic front fork and Uni-Trak rear suspension designed for stable handling and rider confidence.
Oil Change Interval:
Every 6,000 km (3,700 miles) or 6 months, whichever comes first.
Oil Filter Replacement:
At every oil change.
Air Filter Cleaning Replacement:
Inspect every 6,000 km (3,700 miles), clean or replace as needed. Recommended replacement at 12,000 km (7,500 miles) or earlier if dirty.
Spark Plug Replacement:
Every 12,000 km (7,500 miles) or annually.
Chain Lubrication Adjustment:
Every 1,000 km (600 miles) or after washing/rain, and adjust as needed.
Valve Clearance Check:
Every 24,000 km (15,000 miles).
Engine Oil Type:
SAE 10W-40 API SG or higher, JASO MA certified motorcycle oil.
Engine Oil Capacity:
With filter change: 1.7 L (1.8 US qt); Without filter change: 1.5 L (1.6 US qt).
Coolant Type:
Permanent type antifreeze coolant (ethylene glycol based), mixed with distilled water in a 50:50 ratio.
Brake Fluid Type:
DOT 4 Hydraulic Brake Fluid.
Fork Oil Type:
Refer to manual for specific viscosity, typically SAE 10W. Capacity: 480 ml per fork leg.
Common Wear Items:
Clutch plates, brake pads, chain and sprockets, front fork seals (due to typical usage).
Potential Failures:
Regulator/rectifier failure can occur on some Kawasaki models of this era, leading to charging system issues. Carburetor synchronization may be needed over time for optimal performance. Some riders report valve train noise if not adjusted properly.
Heritage:
Kawasaki Heavy Industries has a long-standing reputation for producing high-performance and reliable motorcycles across various segments, including sportbikes.
Previous Generations:
The Ninja 250 lineage dates back several decades, with the EX250 platform being a significant iteration known for its blend of performance and affordability. Predecessors include models like the EX250-F (carbureted, earlier generations).
Successor:
The Ninja 250R was succeeded by the Ninja 300 (EX300) in many markets, offering a larger displacement engine.
Manufacturing Locations:
Primarily manufactured in Thailand and Japan.
Production Years:
The EX250 platform (including the 250R variant) was produced for many years, with the specific 2008-2012 generation being a notable update.
