🏷️ Basic Information

Make:

Kawasaki

Model:

KX250F

Year:

2010

Vehicle Type:

Motocross Motorcycle

Manual Product Name:

Kawasaki KX250F Motocross Motorcycle Complete Workshop Service Repair Manual 2010 PDF Download

👋 Introduction

Segment:

Performance Motocross Motorcycle

Target Audience:

Competitive motocross racers and serious off-road enthusiasts seeking detailed maintenance and repair information.

Competitors 2010:

Honda CRF250R, Yamaha YZ250F, Suzuki RM-Z250, KTM 250 SX-F

Engine Type:

Lightweight, high-revving four-stroke engine with fuel injection.

Suspension Technology:

Advanced Showa SFF front forks and a sophisticated rear shock absorber for superior handling and adjustability.

Chassis Design:

Lightweight aluminum perimeter frame for optimal rigidity and agility.

Coverage Benefit:

Empowers owners and technicians to maintain, diagnose, and repair the KX250F with factory-level accuracy, maximizing performance and longevity.

📋 Manual Details

Manual Type:

Complete Workshop Service Repair Manual

Language:

English

Format:

PDF Download

📖 Manual Coverage

Engine Overhaul:

Complete engine disassembly, inspection, repair, and reassembly procedures for the 249cc liquid-cooled, four-stroke, DOHC, four-valve engine.

Fuel System:

Detailed coverage of the fuel injection system, including injector cleaning, pump testing, sensor diagnostics (TPS, MAP, IAT, ECT), and ECU troubleshooting.

Ignition System:

Information on the digital DC-CDI ignition system, including ignition coil testing, spark plug specifications, and troubleshooting.

Transmission And Drivetrain:

Coverage of the constant mesh, 5-speed sequential transmission, clutch operation (hydraulic), final drive chain adjustment, and gearbox disassembly.

Suspension Front:

In-depth procedures for the Showa Separate Function Front Fork (SFF) with 48mm inner tubes, including oil level, damping adjustments, seal replacement, and spring installation.

Suspension Rear:

Comprehensive guide for the Showa shock absorber with adjustable spring preload, compression, and rebound damping, including linkage disassembly and lubrication.

Braking System:

Details on front and rear hydraulic disc brakes, including caliper inspection, pad replacement, fluid bleeding, master cylinder maintenance, and rotor specifications.

Electrical System:

Wiring diagrams, fuse box information, battery maintenance, charging system testing (stator, regulator/rectifier), headlight, taillight, and switchgear troubleshooting.

Cooling System:

Radiator inspection, hose replacement, thermostat operation, water pump maintenance, and coolant specifications.

Chassis And Frame:

Frame inspection, steering head bearing service, swingarm maintenance, and general chassis component checks.

Routine Maintenance:

Oil and filter changes, air filter cleaning/replacement, spark plug inspection, chain lubrication and adjustment, tire pressure checks, and general bolt torque checks.

Troubleshooting Guide:

Systematic diagnostic procedures for common issues such as hard starting, poor performance, electrical faults, and suspension problems.

Major Repairs:

Detailed instructions for engine rebuilds, transmission overhauls, carburetor tuning (if applicable to specific models, but this is FI), and suspension component rebuilding.

Component Replacement:

Step-by-step guides for replacing wear items and major components like brake pads, clutch plates, wheel bearings, and cables.

Torque Specifications:

Essential torque values for all critical fasteners, ensuring proper assembly and preventing component damage.

Depth Level:

Comprehensive, covering everything from basic pre-ride checks to full engine and transmission rebuilds, suitable for professional mechanics and experienced DIY enthusiasts.

Diagnostic Capabilities:

Advanced diagnostics for the fuel injection system and electrical components, including sensor outputs and error code interpretation.

📊 Manual Specifications

File Type:

PDF

Searchability:

Likely text-searchable due to being a digital PDF, allowing for quick navigation to specific topics.

Resolution:

Typically high resolution for clear diagrams and legible text, suitable for printing.

Binding:

N/A (Digital Download)

Paper:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Type:

249cc liquid-cooled, four-stroke, DOHC, four-valve single-cylinder

Bore X Stroke:

77.0 mm x 53.6 mm

Compression Ratio:

12.8:1

Valve Train:

DOHC, four valves

Horsepower:

Estimated 37-40 HP (at crank, varies by region and dyno)

Torque:

Estimated 20-22 lb-ft (at crank, varies by region and dyno)

Fuel Delivery:

Fuel Injection (DFI) with 43mm Keihin throttle body

Fuel Type:

Unleaded premium gasoline, 91 octane or higher

Oil Type:

SAE 10W-40 API SG or SH motorcycle oil with JASO MA certification

Oil Capacity W Filter:

1.10 L (1.1 US qt)

🔧 Transmission

Type:

Constant mesh, 5-speed sequential

Clutch:

Wet, multi-disc, hydraulic actuation

Final Drive:

Sealed chain, RK520MS0, 112 links

Gear Ratios:

1st: 2.750 (33/12), 2nd: 2.000 (32/16), 3rd: 1.556 (28/18), 4th: 1.250 (25/20), 5th: 1.000 (23/23)

Transmission Oil:

Uses engine oil (refer to engine oil specifications)

📐 Dimensions

Length:

2180 mm (85.8 in)

Width:

815 mm (32.1 in)

Height:

1255 mm (49.4 in)

Wheelbase:

1485 mm (58.5 in)

Ground Clearance:

335 mm (13.2 in)

Seat Height:

955 mm (37.6 in)

Curb Weight:

105.5 kg (232.6 lbs)

Fuel Capacity:

8.0 L (2.1 US gal)

🛡️ Safety Features

Safety Ratings:

Not applicable (motocross competition vehicle)

Braking System Type:

Hydraulic disc front and rear for strong stopping power.

Chassis Stability:

Rigid aluminum frame and advanced suspension contribute to rider control.

Ergonomics:

Designed for optimal rider positioning and control during aggressive riding.

Tire Grip:

Motocross-specific knobby tires provide maximum traction.

💡 Technology Features

Infotainment System:

N/A (Competition motorcycle)

Assistance Features:

N/A (Competition motorcycle)

Connectivity Features:

N/A (Competition motorcycle)

Efi System:

Kawasaki's digital fuel injection (DFI) system with user-selectable ECU couplers for engine map tuning (e.g., standard, hard pack, soft terrain).

🔧 Maintenance

Engine Oil Change:

Every 15 hours of use or annually, whichever comes first. (Refer to manual for specific riding conditions).

Air Filter Cleaning:

After every few rides, or more frequently in dusty conditions. (Refer to manual for detailed cleaning procedure).

Spark Plug Inspection:

Every 15 hours of use.

Chain Lubrication Adjustment:

Every 5-10 hours of use, or as needed based on slack.

Engine Oil Spec:

SAE 10W-40 API SG or SH, JASO MA

Coolant Spec:

Permanent type antifreeze coolant with a 50/50 mix of distilled water.

Brake Fluid Spec:

DOT 4 hydraulic brake fluid

Common Wear Items:

Clutch plates, brake pads, chain and sprockets, wheel bearings, fork seals, and piston rings are common wear items on high-performance motocross bikes.

Potential Engine Concerns:

While generally robust, diligent adherence to maintenance schedules is crucial to prevent premature wear on critical engine components like the piston and valves due to the high-stress nature of motocross.

📚 Vehicle History

Kawasaki Motocross Legacy:

Kawasaki has a long and successful history in professional motocross, with numerous championships and technological innovations.

Kx250F Evolution Prior To 2010:

The KX250F has seen significant development, moving from carbureted models to the introduction of fuel injection in preceding years, enhancing performance and rider usability.

2010 Kx250F Updates:

The 2010 model saw refinements in its fuel injection mapping, suspension tuning, and chassis improvements to maintain its competitive edge.

Manufacturing Location:

Japan

🏆 Awards & Recognition

Motocross Magazine Awards 2010:

While specific awards for the 2010 model year are not detailed in the product description, the KX250F platform consistently received positive reviews and comparisons in leading motocross publications for its performance and handling.

Performance Ratings:

Highly rated for its powerful engine and responsive chassis by industry experts and professional racers.

Emissions Certification:

N/A (Competition motorcycles are typically not subject to the same emissions regulations as street-legal vehicles.)