Target Audience:
Owners of Kawasaki KX125 and KX250 motorcycles from 1994-1998 seeking to perform maintenance, repairs, and diagnostics themselves or to understand the factory procedures.
Manual Superiority:
As an original factory service manual, it offers unparalleled accuracy and completeness compared to aftermarket manuals.
Accuracy:
Written by Kawasaki, ensuring the highest level of accuracy for all procedures and specifications.
Detail Level:
Contains hundreds of pages with detailed instructions and step-by-step diagrams, offering immense detail.
Value Proposition:
A 'gold mine of information' for owners, enabling cost-effective maintenance and deeper understanding of the machine.
Primary Focus:
Comprehensive service, repair, and maintenance for Kawasaki KX125 and KX250 motocross motorcycles.
Specific Sections:
General Information, Periodic Maintenance, Fuel System (DFI), Cooling System, Engine Top End, Clutch, Engine Lubrication System, Engine Removal/Installation, Crankshaft/Transmission, Wheels/Tires, Final Drive, Brakes, Suspension, Steering, Frame, Electrical System, Appendix.
Estimated Page Count:
Hundreds of pages (exact count not specified but implied by 'hundreds of pages of diagrams and detailed information').
Type:
Original Factory Service Repair Workshop Manual.
Compatibility:
All Versions of Windows & Mac.
Engine:
Complete coverage from top-end rebuilds to general information, including lubrication and removal/installation.
Fuel System:
Detailed coverage of the DFI (Digital Fuel Injection) system for both models.
Cooling System:
Comprehensive instructions for maintenance and repair of the cooling system.
Transmission Drivetrain:
Includes crankshaft, transmission, final drive, and clutch systems.
Chassis Suspension Brakes:
Covers wheels, tires, brakes, suspension (front and rear), steering, and frame.
Electrical System:
Detailed electrical diagrams and troubleshooting information.
Maintenance:
Periodic maintenance schedules and procedures, including fluid changes, filter replacement, and general upkeep.
Repair:
Step-by-step repair instructions for virtually all components and systems, from minor adjustments to major overhauls.
Diagnostics:
Troubleshooting guides and diagnostic procedures to identify and resolve common and uncommon issues.
Engine Rebuild:
Full engine rebuilding procedures, including component disassembly, inspection, repair, and reassembly.
Component Specific:
Detailed instructions for carburetor/DFI tuning, suspension adjustments, brake caliper service, and more.
Level:
Professional-grade, used by technicians. Covers everything from basic tasks like spark plug changes to complex engine rebuilds.
Diagnostic Detail:
In-depth troubleshooting for electrical and mechanical issues, often including diagnostic flowcharts.
Special Tools:
Likely specifies any special tools required for specific procedures, a hallmark of factory manuals.
Model Kx125:
Two-stroke, liquid-cooled single-cylinder (specific displacement varies by exact year within the range, but typically 124cc).
Model Kx250:
Two-stroke, liquid-cooled single-cylinder (specific displacement varies by exact year within the range, but typically 249cc).
Hp Torque Kx125:
Varies by year, but generally in the 30-35 HP range. Specific figures require consulting the manual for each year.
Hp Torque Kx250:
Varies by year, but generally in the 40-45 HP range. Specific figures require consulting the manual for each year.
Kx125 Fuel Delivery:
Carburetor (specific model like Keihin PWK) and DFI (Digital Fuel Injection) components as indicated in the manual.
Kx250 Fuel Delivery:
Carburetor (specific model like Keihin PWK) and DFI (Digital Fuel Injection) components as indicated in the manual.
Ignition:
CDI (Capacitor Discharge Ignition) with electronic timing, details covered in electrical section.
Lubrication:
Premix fuel or separate oil injection system depending on the specific year and model configuration. Detailed in the Engine Lubrication System section.
Type:
5-speed or 6-speed constant mesh manual transmission.
Options:
N/A (standard for motocross bikes of this era).
Clutch:
Wet, multi-plate type. Detailed service and adjustment procedures are included.
Gear Ratios:
Specific gear ratios for each model year are provided in the manual.
Final Drive:
Chain drive. Manual covers chain adjustment, sprockets, and related components.
Certification:
N/A (Off-road motorcycles typically do not have NHTSA/Euro NCAP safety ratings).
Braking System:
Hydraulic disc brakes front and rear. Manual provides detailed servicing procedures.
Suspension Control:
Adjustable front forks (e.g., USD telescopic) and rear shock absorber. Manual covers adjustment and servicing.
Frame Construction:
Robust steel perimeter frame designed for strength and rigidity. Frame inspection and repair guidance in manual.
Features:
N/A (Motocross motorcycles of this era focus on performance and do not feature infotainment systems).
Features:
N/A (No electronic driver assistance systems).
Features:
N/A (No connectivity features).
System:
DFI (Digital Fuel Injection) on some models/years, requiring specific diagnostic understanding covered in the manual.
General Schedule:
The manual provides detailed periodic maintenance schedules based on operating hours or mileage, covering everything from daily checks to major service intervals.
Engine Oil Kx125 Kx250:
Specific recommended engine oil viscosity grades (e.g., SAE 10W-40 or 20W-50) and API service classifications will be detailed in the manual.
Coolant:
Type of coolant and mixture ratio (e.g., ethylene glycol-based with distilled water) specified. Capacity figures will also be included.
Brake Fluid:
DOT 3 or DOT 4 hydraulic brake fluid specification will be listed. Fluid change intervals are also crucial.
Transmission Oil:
Specific gear oil type and viscosity for the transmission will be provided, along with capacity.
Common Wear Items:
Typical wear items for this era's motocross bikes include piston rings, clutch plates, wheel bearings, steering head bearings, and suspension seals. The manual will detail inspection and replacement procedures for these.
Engine Tuning Considerations:
Proper carburetor jetting or DFI mapping for altitude and temperature is critical; the manual provides baseline settings and adjustment procedures.
Torque Settings:
Crucial torque specifications for all critical fasteners (e.g., cylinder head bolts, crankcase bolts, wheel nuts) are explicitly listed.
Spark Plug Specifications:
Correct spark plug type (e.g., NGK) and gap settings are provided for optimal performance.
Tire Pressure:
Recommended tire pressures for front and rear tires will be specified for various riding conditions.
Kawasaki Motocross:
Kawasaki has a long and successful history in motocross racing, with the KX line being a cornerstone of their performance off-road offerings.
Kx125 Kx250 90S:
The 1994-1998 models represent a significant period of development for these machines, featuring advancements in suspension, chassis design, and engine technology to remain competitive in professional motocross.
Manufacturing Location:
Japan (typical for Kawasaki's high-performance models during this era).
