Model Years Covered:
2001-2010
Model Codes Covered:
KX85-A1, KX85-A2, KX85-A3, KX85-A4, KX85-B5, KX85-A5, KX85-B6F, KX85-A6F, KX85-B7F, KX85-A7F, KX85-B8F, KX85-A8F, KX85-B9F, KX85-A9F, KX85BAF, KX85AAF, KX100D1, KX100D2, KX100D3, KX100D4, KX100D5, KX100D6, KX100D7F, KX100D8F, KX100D9F
Target Audience:
Enthusiast riders, mechanics, and owners of Kawasaki KX85 and KX100 motorcycles seeking comprehensive repair and maintenance information.
Value Proposition:
Provides factory-level diagnostic, repair, and maintenance data, mirroring the information used by authorized Kawasaki service centers. Offers significant cost savings compared to dealership labor for repairs.
Features:
Original factory documentation, detailed diagrams, step-by-step procedures, comprehensive coverage of all major vehicle systems, and diagnostic troubleshooting guides.
Completeness:
This is a complete informational book, offering hundreds of pages of diagrams and detailed information for specific vehicle repair, making it an invaluable resource.
Engine:
Comprehensive coverage of top end, right side components, removal/installation, and bottom end/transmission. Includes detailed diagrams and procedures for internal engine components, lubrication, cooling, and fuel delivery.
Fuel System:
Detailed explanations of carburetor systems, fuel tank, fuel lines, and troubleshooting for fuel delivery issues. Specifics on jetting and adjustments are likely included.
Cooling System:
Covers radiator, coolant flow, water pump operation, and maintenance for both air-cooled (where applicable) and liquid-cooled configurations.
Electrical System:
Includes wiring diagrams, troubleshooting for ignition, lighting, and charging systems. Coverage of component testing and electrical diagnostic procedures.
Suspension:
Detailed procedures for front fork and rear shock absorber maintenance, adjustment, and overhaul. Includes specifications for oil levels and types.
Brakes:
Covers front and rear brake systems, including hydraulic components, brake pads, rotors, bleeding procedures, and troubleshooting.
Frame And Bodywork:
Information on frame integrity, steering head bearings, and potentially some body panel removal and installation procedures.
Wheels And Tires:
Covers wheel bearing maintenance, spoke tensioning, tire replacement, and balancing procedures. May include recommended tire pressures.
Routine Maintenance:
Complete guide to scheduled maintenance, including oil changes, filter replacements, chain adjustments, and general inspection points.
Diagnostic Troubleshooting:
Detailed diagnostic procedures for identifying and resolving common mechanical and electrical issues, often with flowcharts or step-by-step guides.
Engine Rebuild:
Comprehensive instructions for engine disassembly, inspection of internal components (pistons, rings, cylinders, crankshaft, connecting rods), and reassembly with torque specifications.
Component Overhaul:
Step-by-step guides for rebuilding major components such as the carburetor, water pump, and brake calipers.
Suspension Tuning:
Guidance on adjusting suspension sag, compression, and rebound damping for optimal performance based on rider weight and track conditions.
Wiring Diagram Interpretation:
Detailed wiring schematics to aid in electrical system diagnostics and repairs.
Depth Level:
Professional Technician Level
Diagnostic Capability:
Advanced diagnostic procedures, including component testing, electrical troubleshooting, and symptom-based problem resolution.
Repair Scope:
Covers everything from basic maintenance to complete engine and component rebuilds, ensuring that a user can perform almost any repair.
Engine Type:
Liquid-cooled, 2-stroke, single-cylinder
Bore X Stroke Kx85:
48.5 mm x 45.8 mm
Displacement Kx85:
84 cm³ (5.1 cu in)
Bore X Stroke Kx100:
52.5 mm x 45.8 mm
Displacement Kx100:
99 cm³ (6.0 cu in)
Compression Ratio Kx85:
9.9:1 (typical, specific variants may vary)
Compression Ratio Kx100:
9.6:1 (typical, specific variants may vary)
Horsepower Kx85:
Approximately 26-28 HP (exact figures vary by model year and tune)
Horsepower Kx100:
Approximately 30-32 HP (exact figures vary by model year and tune)
Carburetor Kx85:
Keihin PWK34
Carburetor Kx100:
Keihin PWK38
Fuel Type:
Unleaded gasoline (minimum 91 octane recommended)
Fuel Mixture:
2-stroke pre-mix (refer to manual for specific ratio, typically 50:1 or 40:1 with high-quality 2-stroke oil)
Length:
Approx. 1,850 - 1,920 mm (72.8 - 75.6 in) (varies by model)
Width:
Approx. 760 - 770 mm (29.9 - 30.3 in) (varies by model)
Height:
Approx. 1,155 - 1,160 mm (45.5 - 45.7 in) (varies by model)
Dry Weight:
Approx. 75 - 79 kg (165 - 174 lbs) (varies by model)
Curb Weight:
Not typically specified for motocross bikes in this segment, but closer to dry weight.
Front Tire Size:
70/100-17 40M (KX85), 70/100-19 42M (KX100)
Rear Tire Size:
90/100-14 49M (KX85), 90/100-16 51M (KX100)
Front Wheel Size:
17-inch (KX85), 19-inch (KX100)
Rear Wheel Size:
14-inch (KX85), 16-inch (KX100)
Oil Change Engine:
Refer to manual; typically recommended every 15-25 hours of riding for transmission oil, and pre-mix for engine lubrication.
Air Filter Cleaning:
Frequent cleaning recommended, especially after dusty riding conditions. Check and clean every 5-10 hours.
Spark Plug Replacement:
Check and clean spark plug regularly, replace as needed based on condition. Typically every 20-40 hours of use.
Chain And Sprocket Maintenance:
Regular cleaning, lubrication, and tension adjustment. Inspect for wear and replace as a set when worn.
Coolant:
Kawasaki All-Season Motorcycle Coolant or equivalent (ethylene glycol-based) with distilled water in a 50/50 mix.
Fork Oil:
Kawasaki Fork Oil G10 or G15 (specific weight depends on rider preference and track conditions; refer to manual for exact recommendations).
Common Wear Items:
Clutch plates, piston rings, air filters, chain and sprockets, brake pads are common wear items subject to frequent replacement in aggressive riding.
Carburetor Cleaning:
Carburetors can require periodic cleaning and jetting adjustments, especially if fuel quality varies or if the bike sits for extended periods.
Cooling System Maintenance:
Regular flushing and replacement of coolant is crucial to prevent overheating and maintain system efficiency.
Kawasaki Offroad:
Kawasaki has a long and storied history in motocross and off-road racing, consistently producing competitive and durable machines.
Kx Lineage:
The KX85 and KX100 are part of Kawasaki's successful KX motocross line, evolving from earlier KX60 and KX65 models, offering a step-up in performance and technology for aspiring young racers.
Production Period:
The KX85 and KX100 have been in continuous production, with updates to styling, suspension, and minor engine refinements throughout their respective model runs.
