Positioning:
The Kawasaki Ninja 250R (EX250) is a popular entry-level sportbike, known for its agility, fuel efficiency, and affordability. It serves as a gateway into sportbike riding for many enthusiasts.
Competitors:
Competes with other lightweight sportbikes such as the Honda CBR250R, Yamaha YZF-R25, and Suzuki GS500F (in certain markets).
Sportbike Appeal:
Full fairing, sporty riding position, and performance characteristics that mimic larger Ninja models.
Accessibility:
Beginner-friendly power delivery and manageable weight make it accessible for new riders.
Primary Coverage:
Repair, maintenance, diagnostics, and disassembly/assembly procedures for the 2008 Kawasaki Ninja 250R.
Secondary Coverage:
Includes adjustments, checks, and specifications.
Type:
Factory Service Repair Manual
Engine:
Full disassembly, assembly, inspection, and repair of the 250cc parallel-twin engine, including valve clearance, timing, lubrication system, and cooling.
Fuel System:
Carburetor tuning and adjustment, fuel pump operation, fuel tank and lines.
Ignition System:
CDI system, spark plugs, ignition timing checks.
Transmission Drivetrain:
Clutch operation, gearbox disassembly and assembly, chain maintenance and adjustment, final drive.
Chassis Frame:
Frame inspection, fork disassembly and assembly, rear suspension adjustment and service, steering head bearing maintenance.
Brakes:
Front and rear brake system overhaul, fluid replacement, caliper inspection, master cylinder service, pad replacement.
Electrical System:
Wiring diagrams, lighting system, battery maintenance, starter system, charging system, fuses.
Bodywork Fittings:
Fairing removal and installation, seat, fuel tank removal, body panel care.
Maintenance:
Routine maintenance, oil changes, filter replacement, chain lubrication, brake fluid flush, coolant replacement.
Troubleshooting:
Diagnostic flowcharts and common problem identification for engine, electrical, and mechanical issues.
Repair:
Detailed step-by-step instructions for component repair and replacement.
Disassembly Assembly:
Comprehensive guides for dismantling and reassembling all major motorcycle systems.
Adjustments:
Carburetor synchronization, idle speed adjustment, clutch and throttle cable adjustment, suspension settings.
Depth:
Complete factory-level repair information suitable for professional mechanics and advanced DIY enthusiasts, covering everything from basic maintenance to full engine rebuilds.
Engine Type:
Liquid-cooled, four-stroke, DOHC, parallel-twin
Displacement:
249 cc (15.2 cu in)
Bore X Stroke:
55.0 x 52.4 mm
Compression Ratio:
11.6:1
Valve Train:
DOHC, 8 valves (2 per cylinder)
Horsepower Est:
Approx. 30-34 HP @ 10,500 RPM (crank)
Torque Est:
Approx. 17-19 lb-ft @ 8,000 RPM (crank)
Fuel Delivery:
Two Keihin CVK34 carburetors
Fuel Tank Capacity:
18 L (4.8 US gal)
Oil Type Spec:
SAE 10W-40 API SG, SF, or SH (check manual for exact specification)
Coolant Type:
Ethylene glycol-based antifreeze solution (50/50 mix with distilled water)
Safety Standards:
Meets or exceeds applicable safety standards for motorcycles in its class.
Braking System Front:
290 mm petal disc, dual piston caliper
Braking System Rear:
220 mm petal disc, dual piston caliper
Suspension Front:
37 mm telescopic fork
Suspension Rear:
Uni-Trak with adjustable preload
Lighting:
Halogen headlight, LED taillight
Tires Front:
110/70-17 M/C 54H
Tires Rear:
130/70-17 M/C 62H
Wheel Type:
Cast alloy wheels
First Service:
Typically around 600 miles (1,000 km) for the initial break-in service (oil change, filter check, chain adjustment, valve clearance check).
Regular Maintenance:
Oil and filter change every 3,000-4,000 miles (5,000-6,000 km). Chain adjustment and lubrication every 500-700 miles (800-1,100 km). Air filter cleaning/replacement every 6,000-8,000 miles (10,000-13,000 km). Valve clearance checks every 7,500-15,000 miles (12,000-24,000 km) depending on usage and conditions (refer to manual).
Engine Oil Capacity:
Approx. 1.6 L (1.7 US qt) with filter change; 1.4 L (1.5 US qt) without filter change.
Brake Fluid:
DOT 4 (refer to manual for exact specification and type)
Coolant Capacity:
Approx. 1.1 L (1.2 US qt)
Carburetor Issues:
Carburetors can sometimes require cleaning or synchronization, especially if the bike has sat for extended periods or has had fuel quality issues.
Cam Chain Tensioner:
While not overly common, the automatic cam chain tensioner can occasionally fail or require manual adjustment/replacement in higher mileage units.
Clutch Wear:
Normal wear and tear on clutch plates is expected with regular use, requiring adjustment or replacement over time.
Kawasaki Legacy:
Kawasaki Heavy Industries has a long history of producing motorcycles, known for their performance and innovation, particularly in the sportbike segment with the Ninja line.
Ninja 250 Lineage:
The Ninja 250R has been a staple in Kawasaki's lineup for decades, undergoing continuous evolution. The 2008 model represents a significant update from previous generations, often referred to as the 'Ninja 250R' designation in many markets.
Manufacturing Location:
Typically manufactured in Thailand or Japan.
Production Years:
The EX250 platform that includes the 2008 model has seen production from the early 2000s up to the redesign that introduced the Ninja 300.
Award History:
Frequently praised in motorcycle publications as an excellent beginner sportbike for its balance of performance, handling, and affordability. Specific awards may vary by region and publication.
Reliability Rating:
Generally considered reliable with proper maintenance.
Certification Standards:
Meets all required emissions and safety certifications for its model year.
