Target Audience:
Targeted primarily at professional motorcycle technicians, but also provides sufficient data for competent DIY mechanics performing repairs and maintenance.
Skill Level Required:
Assumes basic knowledge in electrical and mechanical concepts. Advises against complicated repairs for those lacking foundational knowledge.
Content Scope:
Covers topics typically found in factory service manuals and owner's manuals, offering a comprehensive reference.
Learning Methodology:
Designed to guide users through fundamentals step-by-step, imparting factory-trained technician knowledge.
Delivery Method:
Instant Download, providing immediate access to repair information.
Engine Mechanical:
Engine disassembly, assembly, inspection, overhaul, valve adjustment, timing, piston/ring replacement, crankshaft, camshafts.
Fuel System:
Carburetor servicing (cleaning, adjustment, synchronization), fuel pump, fuel filter, fuel tank.
Cooling System:
Radiator, fan, thermostat, coolant flow, pressure testing.
Exhaust System:
Exhaust pipes, mufflers, catalytic converter (if applicable), inspection and replacement.
Transmission:
Clutch operation, gearbox disassembly, inspection, reassembly, gear ratios, shifting mechanism.
Drivetrain:
Final drive chain maintenance, adjustment, sprocket inspection and replacement.
Brakes:
Front and rear brake caliper servicing, master cylinder, brake lines, fluid replacement, bleeding, pad and disc inspection/replacement.
Suspension:
Front fork disassembly, servicing, oil changes, seal replacement, rear shock absorber inspection and adjustment.
Steering:
Handlebar, steering stem bearings, inspection and lubrication.
Electrical System:
Wiring diagrams, battery maintenance, charging system (stator, regulator/rectifier), ignition system (spark plugs, ignition coils), lighting, starting system, instrumentation.
Frame And Bodywork:
Chassis inspection, fairing removal/installation, seat, fuel tank, fenders.
Troubleshooting:
Diagnostic charts, common problems and solutions for various systems.
Preventative Maintenance:
Scheduled maintenance tasks, fluid changes, filter replacements, lubrication points.
Disassembly Assembly:
Detailed step-by-step instructions for component removal and reinstallation.
Cleaning:
Specific cleaning procedures for components like carburetors and engine parts.
Repair Procedures:
Comprehensive instructions for repairing all major vehicle systems.
Technical Specifications:
Detailed torque values, clearances, fluid capacities, and electrical specifications.
Depth:
Factory-level diagnostic and repair procedures, suitable for advanced DIY and professional mechanics. Covers detailed internal engine work, electrical troubleshooting, and chassis component overhaul.
Engine Type:
Four-stroke, DOHC, parallel-twin
Displacement:
249 cc (15.2 cu in)
Bore X Stroke:
62.0 x 41.2 mm (2.44 x 1.62 in)
Compression Ratio:
11.7:1
Horsepower:
Approx. 30-32 HP (at crankshaft, varies slightly by region/tuning)
Torque:
Approx. 17-19 lb-ft (at crankshaft, varies slightly by region/tuning)
Fuel Delivery:
Dual Keihin CVK30 carburetors
Fuel Type:
Unleaded gasoline, minimum 87 octane
Ignition System:
Digital CDI with electronic advance
Oil Capacity:
1.7 L (1.8 US qt) with filter change
Recommended Oil:
SAE 10W-40 API SG or higher, JASO MA certified motorcycle oil.
Oil And Filter Change:
Recommended every 4,000 miles (6,000 km) or 6 months, whichever comes first.
Air Filter Cleaning:
Recommended every 8,000 miles (12,000 km), replace as needed.
Spark Plug Replacement:
Recommended every 12,000 miles (20,000 km).
Valve Clearance Check:
Recommended every 16,000 miles (24,000 km).
Chain Lubrication And Adjustment:
Every 1,000 miles (1,600 km) or as needed, check tension.
Coolant:
Ethylene glycol-based coolant, 50/50 mix with distilled water. Kawasaki recommends KLC coolant.
Fork Oil:
SAE 10W (Capacity: 435 ml per fork leg)
Common Issues:
Carburetor synchronization can drift over time requiring periodic adjustment. Clutch cable adjustment may be needed. Some owners report minor electrical gremlins with age, particularly related to connectors.
Recommended Maintenance:
Regular cleaning and lubing of the chain is crucial for drivetrain longevity. Checking brake fluid level and condition is essential for safety.
Kawasaki Heritage:
Kawasaki Heavy Industries, Ltd. is a Japanese conglomerate known for its motorcycles, heavy equipment, aerospace, and defense products. The 'Ninja' moniker signifies performance and sportiness.
Ninja 250R Evolution:
The Ninja 250R has a long lineage, originating from the GPZ250. The EX250 platform, including the 2010 model, represents a refinement of this successful entry-level sportbike, known for its reliability and ease of use.
Production Years:
The EX250 platform has seen continuous production with updates through various generations, with the 2010 model being part of the third generation.
Manufacturing Location:
Primarily manufactured in Japan.
