🏷️ Basic Information

Make:

Kawasaki

Model:

Ninja 250R

Model Code:

EX250B

Model Designation:

Ninja 250R

Years Covered:

2008, 2009, 2010, 2011, 2012

👋 Introduction

Category:

Entry-level sportbike, lightweight motorcycle

Target Audience:

New riders, commuters, those seeking an affordable and fun sporty experience

Competitors:

Honda CBR250R, Yamaha YZF-R25 (later models), Suzuki GS500F (larger displacement but similar market segment for affordability)

Ride Handling:

Nimble and agile handling, ideal for urban environments and twisty roads

Fuel Efficiency:

Renowned for excellent fuel economy

Affordability:

Accessible purchase price and low running costs

Design:

Sportbike styling with full fairings, mimicking larger Ninja models

📋 Manual Details

Manual Type:

Workshop Service Manual

Page Count:

427

Language:

English

Format:

PDF Download

📖 Manual Coverage

Engine:

Full engine overhaul, disassembly, assembly, timing, lubrication, cooling system

Fuel System:

Carburetor tuning and overhaul, fuel pump, fuel lines, fuel tank service

Transmission:

Clutch operation, gearbox disassembly and assembly, gear selection mechanism

Chassis:

Frame inspection, swingarm maintenance, suspension adjustment and overhaul (front fork, rear shock)

Brakes:

Front and rear brake system service, caliper overhaul, hydraulic system bleeding, pad replacement

Electrical System:

Wiring diagrams, ignition system service, charging system (stator, regulator/rectifier), lighting, battery maintenance

Cooling System:

Radiator, fan, thermostat, coolant replacement and bleeding

Exhaust System:

Muffler and exhaust pipe inspection and replacement

Wheels And Tires:

Tire pressure, wear inspection, wheel bearing service, spoke tension adjustment (if applicable)

Bodywork:

Fairing removal and installation, seat service, fuel tank removal

Maintenance:

Scheduled maintenance tasks, oil changes, filter replacements, spark plug service, chain adjustment and lubrication

Troubleshooting:

Diagnostic procedures for common and uncommon issues, fault finding guides, symptom-based diagnostics

Repair:

Step-by-step repair instructions for all major and minor components

Disassembly And Assembly:

Detailed instructions for dismantling and reassembling all major motorcycle systems

Torque Specifications:

Precise torque values for critical fasteners throughout the motorcycle

Adjustment Procedures:

Carburetor synchronization, valve clearance adjustment, cable adjustments

Special Tools:

Identification and usage of specialized tools required for certain procedures

Depth:

Comprehensive, covering everything from basic rider maintenance to full engine rebuilds and advanced diagnostics

📊 Manual Specifications

Format Type:

PDF

Searchability:

Likely text-searchable, enabling quick location of information

Print Quality:

Assumed to be high-resolution for clear diagrams and text

Distribution:

Instant Download

Binding:

N/A (Digital PDF)

Paper:

N/A (Digital PDF)

⚙️ Engine Specifications

Engine Type:

Liquid-cooled, four-stroke, DOHC, parallel-twin

Displacement:

249 cc

Bore X Stroke:

55.0 x 52.4 mm

Compression Ratio:

11.0:1

Valves Per Cylinder:

4

Power Delivery:

Smooth and tractable power delivery suitable for beginners

Horsepower Approx:

30-32 HP (at crankshaft)

Torque Approx:

17-18 lb-ft (at crankshaft)

Carburetion:

Two Keihin CVK32 carburetors

Fuel Tank Capacity:

18 L (4.8 US gal)

Oil Type:

API SG, SF, or SE, SAE 10W-40 recommended (consult manual for exact spec)

Oil Capacity W Filter:

2.1 L (2.2 US qt)

Oil Capacity Wo Filter:

1.9 L (2.0 US qt)

🔧 Transmission

Transmission Type:

6-speed constant mesh

Clutch Type:

Wet, multiple-disc

Final Drive:

Sealed chain

Gear Ratios:

Specific gear ratios detailed in the manual

Transmission Fluid:

Refer to manual for specific gear oil type and capacity (typically shared with engine oil for this model)

📐 Dimensions

Overall Length:

2,005 mm (78.9 in)

Overall Width:

750 mm (29.5 in)

Overall Height:

1,095 mm (43.1 in)

Wheelbase:

1,390 mm (54.7 in)

Ground Clearance:

155 mm (6.1 in)

Seat Height:

780 mm (30.7 in)

Curb Weight:

Approx. 170 kg (375 lbs)

Dry Weight:

Approx. 151 kg (333 lbs)

Weight Distribution:

Refer to manual for specific front/rear bias

🛡️ Safety Features

Crash Safety:

N/A (Motorcycle, typically not rated by formal bodies like NHTSA)

Braking System:

Front: Single 290mm petal-disc with dual-piston caliper. Rear: Single 220mm petal-disc with dual-piston caliper. (ABS not typically standard on EX250B models of these years)

Lighting:

Halogen headlight, LED taillight

Mirrors:

Standard handlebar-mounted mirrors

💡 Technology Features

Infotainment System:

N/A (Basic motorcycle instrumentation)

Instrument Cluster:

Analog tachometer, digital speedometer, odometer, trip meter, fuel gauge, coolant temperature warning lamp, neutral indicator

ABS:

Not standard on this model/year range. Manual will cover standard braking system.

Connectivity Features:

N/A

🔧 Maintenance

Oil Change:

Every 6,000 km (3,700 miles) or 6 months, whichever comes first

Oil Filter Change:

Every 12,000 km (7,400 miles) or 12 months, typically with oil change

Air Filter Cleaning:

Every 6,000 km (3,700 miles)

Spark Plug Replacement:

Every 12,000 km (7,400 miles) or 12 months

Valve Clearance Check:

Every 24,000 km (14,900 miles) or 24 months

Engine Oil Grade:

SAE 10W-40 (API SG or higher)

Coolant Type:

Permanent type antifreeze coolant (50% solution with distilled water), or specific Kawasaki coolant

Brake Fluid Type:

DOT 3 or DOT 4 hydraulic brake fluid

Carburetor Issues:

Occasional carburetor synchronization drift, potential for pilot jet clogging if fuel is not fresh or bike sits for long periods

Charging System:

Stator or regulator/rectifier failure can occur with age, leading to battery not charging.

Chain Maintenance:

Proper chain tension and lubrication are crucial for longevity and smooth operation.

Emphasis:

The manual provides detailed procedures for preventative maintenance to ensure optimal performance and lifespan of the vehicle.

📚 Vehicle History

Manufacturer:

Kawasaki Heavy Industries Motorcycle & Engine Company

Reputation:

Known for reliable, performance-oriented motorcycles, particularly in the sportbike segment

Previous Generation Code:

EX250-F (for earlier Ninja 250 models)

Design Philosophy:

Introduction of a more aggressive, aerodynamic fairing design and updated chassis compared to prior generations, aligning with the 'Ninja' family aesthetic.

Production Period:

Covered years 2008-2012, part of a longer-running model lineage.

Manufacturing Location:

Typically Japan, though regional variations may exist

🏆 Awards & Recognition

Awards:

While specific awards for the EX250B model might be scarce, the Ninja 250 lineage is consistently praised in motorcycle publications for its value, beginner-friendliness, and sporty appeal, often appearing on 'best beginner bike' lists.