Segment:
Performance Motocross (MX)
Key Competitors:
Honda CRF250R, Yamaha YZ250F, Suzuki RM-Z250, KTM 250 SX-F.
Model Focus:
The 2010 KX250F is known for its agile handling, potent engine, and competitive edge in motocross racing.
Purpose:
Essential resource for owners and technicians to maintain, diagnose, and repair the 2010 Kawasaki KX250F, ensuring optimal performance and longevity.
Engine:
Engine overhaul, internal components, cooling system, lubrication system, fuel system (carburetor), ignition system, starting system.
Drivetrain:
Clutch, transmission, gear shift mechanism, final drive (chain).
Chassis:
Frame, suspension (front forks, rear shock absorber), steering, wheels, tires, braking system (front and rear).
Electrical:
Wiring diagrams, lighting system, ignition coil, battery, CDI unit, troubleshooting electrical faults.
Bodywork:
Body panels, seat, fuel tank, handlebars, controls.
Maintenance:
Scheduled maintenance, oil changes, filter replacements, chain adjustment, spark plug inspection/replacement, valve clearance checks.
Repair:
Engine rebuilds, transmission repairs, suspension servicing, brake system overhauls, electrical component replacement.
Troubleshooting:
Diagnostic procedures for common and uncommon issues, symptom-based troubleshooting guides.
Assembly Disassembly:
Step-by-step instructions for disassembling and reassembling all major vehicle components.
Depth:
Detailed technical information suitable for professional mechanics and experienced DIY enthusiasts, covering everything from basic adjustments to complete engine overhauls.
Engine Type:
Liquid-cooled, four-stroke, DOHC, four-valve single cylinder
Displacement:
249 cc (15.2 cu in)
Bore X Stroke:
72.0 x 61.1 mm (2.83 x 2.41 in)
Compression Ratio:
12.5:1
Horsepower:
Estimated 36-39 HP (manufacturer figures vary, dependent on dyno and conditions)
Torque:
Estimated 27-29 lb-ft (manufacturer figures vary, dependent on dyno and conditions)
Fuel Delivery:
Keihin FCR39MX carburetor with Dual Injector System (DIS)
Fuel Type:
Unleaded premium gasoline, octane rating 91 or higher
Ignition System:
Digital CDI with variable ignition timing
Lubrication Type:
Forced lubrication, semi-dry sump
Cooling Method:
Liquid-cooled
Crash Test Ratings:
N/A (Motorcycle specific, not subject to automotive crash testing standards)
Braking System:
Hydraulic disc brakes front and rear.
Front Brake Rotor Diameter:
250 mm (9.8 in)
Rear Brake Rotor Diameter:
240 mm (9.4 in)
Handlebar Design:
High-strength aluminum handlebar with ergonomic grips.
Infotainment System:
N/A (Pure performance motocross bike)
Driver Assistance Features:
N/A (Pure performance motocross bike)
Engine Management:
Digital CDI with dual ignition timing maps selectable via handlebar switch (for some models/years, check manual specificity).
Engine Oil Change:
Every 15 hours of operation or every 3 months, whichever comes first.
Air Filter Cleaning:
Every 5 hours of operation or after each race/event.
Spark Plug Inspection:
Every 15 hours of operation.
Valve Clearance Check:
Every 30 hours of operation.
Engine Oil Type:
SAE 10W-40 API SG or higher.
Engine Oil Capacity:
1.70 US qt (1.6 L) without filter change; 1.80 US qt (1.7 L) with filter change.
Coolant Type:
Permanent type antifreeze coolant, 50% solution with deionized water.
Fork Oil Type:
Refer to manual for specific weight (e.g., Showa SS-02 or equivalent).
Common Wear Items:
Clutch plates, piston rings, valve guides, wheel bearings, steering head bearings due to high-stress operation.
Carburetor Tuning:
Carburetor tuning can be critical for optimal performance in varying altitudes and temperatures; the manual provides detailed jetting information.
Kawasaki History:
Kawasaki Heavy Industries, Ltd. has a long-standing reputation for producing high-performance motorcycles, particularly in the off-road and racing categories.
Kx Series Evolution:
The KX250F has been a significant model in Kawasaki's motocross lineup, evolving with fuel injection, advanced suspension, and chassis improvements through the years.
2010 Model Updates:
The 2010 model featured an updated engine, revised chassis for improved handling, and a new Showa suspension package, marking a significant update from previous generations.
Manufacturing Location:
Japan
