Segment:
Entry-level sportbike, popular for new riders and urban commuting
Competitors:
Honda CBR250R, Yamaha YZF-R25 (later models), Suzuki GS500F (similar displacement class)
Performance Focus:
Agile handling, fuel efficiency, accessible power delivery
Design:
Full fairing sportbike styling
General Coverage:
Full Service Repair and Maintenance
Specific Systems Covered:
Engine, Chassis, Electrical, Fuel System, Ignition, Cooling, Lubrication, Transmission, Suspension, Brakes, Frame, Bodywork, Troubleshooting, Diagnostics
Type:
Service Repair Manual
Engine:
Detailed overhaul, top-end, bottom-end, valve clearance, timing, lubrication, cooling systems
Transmission:
Clutch, gearbox removal and installation, gear inspection, shift drum and fork servicing
Electrical:
Wiring diagrams, lighting, ignition system, charging system, starting system, battery, fuses, relays
Fuel System:
Carburetor assembly and disassembly, fuel pump (if applicable), fuel lines, fuel tank servicing
Brakes:
Front and rear brake systems, caliper overhaul, brake pad replacement, hydraulic system bleeding, master cylinder servicing
Suspension Steering:
Front fork disassembly, servicing, oil replacement; rear shock absorber removal and installation; steering head bearing adjustment and replacement
Frame Bodywork:
Frame inspection, fairing removal and installation, seat removal, fuel tank removal, general body panel work
Maintenance:
Scheduled maintenance, oil changes, filter replacements, chain adjustment, tire pressure, brake fluid checks
Troubleshooting:
Diagnostic flowcharts, common problem identification, electrical system troubleshooting, engine performance issues
Repair Rebuild:
Step-by-step guides for major component overhaul and replacement
Diagnostics:
Electrical system testing, sensor checks, ignition timing adjustments
Depth:
Comprehensive: from routine maintenance to complete engine and transmission rebuilds, including detailed specifications and torque values
Type:
4-stroke, liquid-cooled, DOHC, parallel-twin
Bore X Stroke:
62.0 x 41.2 mm
Compression Ratio:
12.8:1
Horsepower Peak:
Approximately 30-32 HP @ 10,500 rpm (manufacturer stated, actual may vary)
Torque Peak:
Approximately 16-18 lb-ft @ 8,000 rpm (manufacturer stated, actual may vary)
Carburetor:
Two Keihin CVK30 carburetors
Fuel Capacity:
18.0 L (4.8 US gal)
System:
Forced lubrication, wet sump
Safety Ratings:
Motorcycle safety is assessed differently than automobiles; primarily focuses on braking performance and handling characteristics. No formal crash test ratings like cars.
Braking System:
Dual hydraulic disc front brake, single hydraulic disc rear brake
ABS:
Optional (ABS variant available in some markets)
Lighting:
Halogen headlamp, LED tail light
Oil Change Interval:
Every 6,000 km (3,700 miles) or 6 months
Air Filter Check:
Every 6,000 km (3,700 miles)
Spark Plug Replacement:
Every 12,000 km (7,500 miles) or 12 months
Valve Clearance Check:
Every 12,000 km (7,500 miles) or 12 months
Brake Fluid Replacement:
Every 24,000 km (15,000 miles) or 24 months
Engine Oil Type:
SAE 10W-40 API SG or higher, JASO MA
Engine Oil Capacity:
2.2 L (2.3 US qt) with filter change
Coolant Type:
Permanent type (ethylene glycol based) antifreeze with distilled water (50:50 mixture)
Common Wear Items:
Clutch plates, brake pads, chain and sprockets, fork seals
Carburetor Tuning:
Can require periodic cleaning and synchronization for optimal performance
Kawasaki Legacy:
Kawasaki Heavy Industries, Ltd. has a long history of motorcycle manufacturing, known for performance and innovation in various displacement classes.
Ninja Lineage:
The Ninja 250R (EX250) has been a cornerstone of Kawasaki's entry-level sportbike lineup for decades, consistently evolving to meet modern standards.
Production Period:
The EX250 platform has been in continuous production with updates since the early 1980s, with the 2010 model representing a significant refinement of the second generation.
