🏷️ Basic Information

Make:

Kawasaki

Model:

Ninja 250R

Year:

2007-2008

Market Segment:

Entry-level Sportbike / Commuter

Model Code 2007:

EX250F7F

Model Code 2008:

EX250F8F

👋 Introduction

Positioning Statement:

The Kawasaki Ninja 250R (EX250) has long been a benchmark for entry-level sportbike performance and affordability, serving as an ideal platform for new riders and experienced commuters alike. Its accessible nature and manageable power delivery made it a popular choice globally.

Key Competitors:

Honda CBR250R, Yamaha YZF-R25 (later models), Suzuki GS500F (classically competitive though larger displacement).

Sportbike Aesthetics:

Full fairing, aggressive styling, clip-on handlebars, and rider-focused ergonomics.

Performance Balance:

Balanced blend of sporty performance suitable for twisty roads and efficient commuting.

Reliability:

Known for robust Kawasaki engineering and generally reliable operation.

📋 Manual Details

Coverage Statement:

Complete Repair and Service

Estimated Page Count:

400-500 pages (typical for this type of comprehensive manual)

Manual Type:

Factory Authorized Service Manual

Language:

English

Format:

Digital (likely PDF)

📖 Manual Coverage

Engine Mechanical:

Full engine disassembly, inspection, and reassembly procedures for top-end, bottom-end, timing, and lubrication systems.

Fuel System:

Carburetor identification, adjustment, cleaning, and overhaul. Fuel tank and petcock inspection and service.

Ignition System:

CDI unit, spark plugs, ignition coil specifications, testing, and troubleshooting.

Cooling System:

Coolant specifications, capacity, bleeding procedures, radiator, fan, and thermostat service.

Transmission:

Gearbox disassembly, inspection, lubrication, clutch assembly, and operation diagnostics.

Chassis Suspension:

Front fork (telescopic) disassembly, oil levels, seal replacement, and damper rod service. Rear shock absorber adjustment and removal.

Brake System:

Front and rear brake caliper service, hydraulic lines, master cylinder overhaul, fluid replacement, bleeding procedures, and pad/rotor wear limits.

Electrical System:

Wiring diagrams, component testing (battery, alternator, starter motor, lights, switches), fuses, and relays.

Bodywork And Frame:

Fairing removal and installation, seat, tank, and fender service, frame inspection.

Routine Maintenance:

Oil changes, filter replacement, chain adjustment, lubrication points, spark plug replacement, air filter cleaning/replacement.

Troubleshooting:

Systematic diagnostic procedures for common starting, running, electrical, and braking issues.

Engine Rebuild:

Complete engine overhaul, piston ring replacement, valve adjustments, bearing checks, and torque specifications for all internal components.

Clutch Service:

Clutch plate replacement, spring inspection, and cable adjustment.

Carburetor Tuning:

Idle speed adjustment, mixture screw settings, float bowl synchronization, and jetting recommendations.

Suspension Overhaul:

Front fork seal replacement, oil change, and rear shock absorber servicing.

Brake System Maintenance:

Brake fluid flush and replacement, caliper piston service, and brake pad replacement procedures.

Electrical Diagnostics:

Testing of charging system, ignition timing, lighting circuits, and starter system faults.

Depth Level:

Comprehensive (from basic maintenance to full engine and transmission rebuilds).

Diagnostic Capability:

Detailed diagnostic flowcharts and component testing procedures.

Repair Focus:

Includes factory-recommended repair procedures and specifications.

📊 Manual Specifications

Digital Format:

PDF

Searchability:

Text-searchable for quick information retrieval.

Image Resolution:

High-resolution diagrams and illustrations for clarity.

Text Clarity:

Sharp, legible text for easy reading.

Binding:

N/A (Digital Format)

Paper Type:

N/A (Digital Format)

⚙️ Engine Specifications

Engine Type:

Liquid-cooled, four-stroke, parallel-twin

Displacement:

249 cc (15.2 cubic inches)

Bore X Stroke:

55.0 mm x 52.4 mm

Valve Train:

DOHC, 8 valves (2 per cylinder)

Horsepower Est:

Approximately 30-34 HP (at crankshaft, varies by region/emission standards)

Torque Est:

Approximately 17-19 lb-ft (at crankshaft, varies by region/emission standards)

Fuel Delivery:

Carburetor

Carburetor Type:

Dual Keihin CVK34 (Constant Velocity Carburetors)

Fuel Type:

Unleaded gasoline, minimum 87 octane

Ignition Type:

Digital CDI with electronic advance

Lubrication System:

Wet sump

Oil Capacity W Filter:

Approx. 1.7 L (1.8 US qt)

Cooling Method:

Liquid-cooled

🔧 Transmission

Transmission Type:

6-speed constant mesh

Clutch Type:

Wet, multiple-disc

Gear Ratios:

Refer to manual for specific gear ratios (e.g., 1st: 2.600, 2nd: 1.944, 3rd: 1.555, 4th: 1.333, 5th: 1.150, 6th: 1.000)

Final Drive:

O-ring sealed chain

📐 Dimensions

Length:

Approx. 2004 mm (78.9 in)

Width:

Approx. 719 mm (28.3 in)

Height:

Approx. 1105 mm (43.5 in)

Wheelbase:

Approx. 1370 mm (53.9 in)

Ground Clearance:

Approx. 150 mm (5.9 in)

Dry Weight:

Approx. 151 kg (333 lbs)

Curb Weight:

Approx. 172 kg (379 lbs)

Fuel Tank Capacity:

18 L (4.8 US gal)

🛡️ Safety Features

Crash Test Information:

Motorcycles are not typically subjected to standardized crash tests like automobiles. Safety relies on design, rider skill, and protective gear.

Braking System:

Dual-piston caliper front disc brake, single-piston caliper rear disc brake. Optional ABS was not widely available on this generation 250R in most markets.

Lighting:

Halogen headlight, LED taillight.

Frame Construction:

High-tensile steel diamond frame for rigidity and rider feedback.

Fairing Design:

Aerodynamic fairing aids stability at speed and protects the rider from elements.

💡 Technology Features

Dashboard Display:

Analog tachometer, digital speedometer, fuel gauge, odometer, trip meter, clock, and indicator lights.

ABS:

Anti-lock Braking System (ABS) was not standard equipment on most 2007-2008 Ninja 250R models, though some specific market variants might have offered it.

Connectivity Features:

No modern connectivity features (e.g., Bluetooth, smartphone integration) are present on this model.

🔧 Maintenance

Oil Change Interval:

Every 6,000 km (3,700 miles) or 6 months.

Air Filter Service:

Every 12,000 km (7,500 miles), or more frequently under dusty conditions.

Spark Plug Replacement:

Every 12,000 km (7,500 miles).

Valve Clearance Check:

Every 18,000 km (11,000 miles).

Engine Oil Type:

API SG, SH, SJ or higher, JASO MA certified (e.g., SAE 10W-40).

Coolant Type:

Permanent type antifreeze coolant (ethylene glycol base) with distilled water (50/50 mix).

Brake Fluid Type:

DOT 4

Fork Oil Type:

SAE 10W

Fork Oil Capacity:

Approx. 455 ml (4.8 US qt)

Carburetor Fouling:

Carburetors can become clogged with debris over time, leading to rough idle or poor performance. Regular cleaning and fuel stabilizer use are recommended.

Cam Chain Noise:

Cam chain tensioner can wear, leading to rattling noises, particularly on startup. The manual will detail inspection and replacement.

Clutch Slippage:

Aggressive riding or worn clutch plates can lead to slippage. The manual provides clutch plate thickness specifications.

Battery Drain:

Older charging systems or batteries can sometimes lead to drain issues. The manual covers testing of the stator and regulator/rectifier.

📚 Vehicle History

Kawasaki Legacy:

Kawasaki Heavy Industries has a long history of motorcycle manufacturing, renowned for its performance-oriented sportbikes and robust engineering since the 1960s.

Ninja Lineage:

The Ninja 250R (also known as EX250) has been a consistently popular model for Kawasaki, evolving through several generations since its introduction in the early 1980s. The 2007-2008 models represent the transition to a more modern, aerodynamic design, bridging the gap to the fuel-injected models.

Manufacturing Location:

Primarily manufactured in Thailand and Japan.

Sales Performance:

The Ninja 250R was a consistent top seller in the lightweight sportbike category in many international markets, including North America and Europe, due to its value proposition.

🏆 Awards & Recognition

Industry Accolades:

Consistently praised by motorcycle publications for its beginner-friendliness, fuel efficiency, and value, often winning 'Best Beginner Bike' or similar awards in its class during its production run.

Owner Satisfaction:

Generally high owner satisfaction due to its reliability and low running costs.