Motorcycle Segment:
Competition Motocross / Off-Road
Key Competitors Era:
Yamaha YZ85, Suzuki RM85, Honda CR85R.
Target Rider:
Youth motocross racers and off-road enthusiasts seeking a competitive 85cc class machine.
Engineering Focus:
Performance, lightweight chassis, responsive power delivery, durability.
Manual Coverage Scope:
Comprehensive service, repair, and maintenance for Kawasaki KX100 motorcycles, model years 2001 through 2010.
Estimated Page Count:
~300-400 (typical for comprehensive workshop manuals)
Manual Classification:
Workshop Service Manual / Repair Manual
Intended User:
Professional Technicians and DIY Enthusiasts
Delivery Format:
PDF Download
Powertrain Systems:
Engine (top-end, bottom-end, cooling, lubrication), Carburetion, Exhaust, Transmission (gearbox, clutch, shifting mechanism), Fuel Delivery.
Chassis Systems:
Frame, Suspension (forks, rear shock absorber, linkages), Steering, Wheels, Tires, Brakes (front and rear hydraulic discs), Swingarm.
Electrical Systems:
Ignition System, Lighting (if applicable), CDI Unit, Wiring Harness, Troubleshooting diagrams.
Frame And Bodywork:
Frame components, sub-frame, fuel tank, seat, fenders, plastics, decals.
Routine Maintenance:
Oil changes, filter replacements, spark plug inspection/replacement, air filter cleaning/replacement, chain adjustment/lubrication, brake pad inspection/replacement, coolant checks.
Repair Procedures:
Engine disassembly and reassembly (cylinder, piston, crankshaft, transmission components), Clutch overhaul, Carburetor tuning and rebuilding, Suspension fork seal replacement, Brake caliper servicing, Wheel bearing replacement.
Troubleshooting:
Diagnostic procedures for common issues, electrical fault finding, engine performance problems, starting difficulties.
Special Tools Required:
Detailed listing and description of essential special tools needed for specific repair procedures.
Diagnostic Level:
Detailed diagnostic charts and procedures for identifying and resolving mechanical and electrical faults.
Rebuild Scope:
Complete engine and transmission rebuild procedures, including torque specifications, clearances, and component tolerances.
Torque Specifications:
Comprehensive torque values for all critical fasteners across all systems.
Engine Type:
2-Stroke, Single-Cylinder
Bore X Stroke:
52.0 mm x 45.8 mm
Cooling System:
Liquid-Cooled
Reed Valve System:
Kawasaki Integrated Power Valve System (KIPS)
Compression Ratio:
Approx. 10.7:1 (typical for this era)
Ignition Timing:
Refer to manual for specific ignition timing settings and adjustments.
Horsepower Approximate:
~25-28 HP (at rear wheel, estimated)
Torque Approximate:
~12-14 lb-ft (at rear wheel, estimated)
Carburetor Type:
Keihin PWK33
Fuel Type:
Unleaded gasoline (91 octane or higher recommended)
Fuel Mixture:
Pre-mix (50:1 ratio of gasoline to 2-stroke oil recommended)
Crankcase Lubrication:
2-stroke oil mixed with fuel.
Overall Length:
Approx. 1830 mm (72.0 in)
Overall Width:
Approx. 760 mm (29.9 in)
Overall Height:
Approx. 1130 mm (44.5 in)
Wheelbase:
Approx. 1275 mm (50.2 in)
Ground Clearance:
Approx. 300 mm (11.8 in)
Seat Height:
Approx. 870 mm (34.3 in)
Dry Weight:
Approx. 73 kg (161 lbs)
Curb Weight:
Not officially specified, but higher than dry weight.
Cargo Capacity:
N/A (Competition Dirt Bike)
Safety Certification:
N/A (Off-road competition vehicle)
Braking System Front:
Hydraulic disc brake with petal-type rotor.
Braking System Rear:
Hydraulic disc brake with petal-type rotor.
Frame Construction:
High-tensile steel perimeter frame designed for rigidity and impact resistance.
Handlebar:
Tapered alloy handlebar with foam pad for impact absorption.
Engine Oil Change Interval:
Refer to manual; typically every 5-10 riding hours for competition use.
Air Filter Cleaning Interval:
Clean after every few rides or as conditions dictate; replace when damaged.
Spark Plug Replacement Interval:
Inspect regularly, replace as needed based on condition (typically every 20-40 riding hours).
Chain Lubrication Interval:
Lubricate before every ride or as necessary.
Transmission Fluid Capacity:
0.75 L (0.79 US qt)
Coolant Type:
Permanent type anti-freeze coolant (50% solution with distilled water recommended).
Fork Oil Type And Level:
Specific type and level of fork oil required for optimal suspension performance; detailed in manual.
Common Wear Items:
Clutch plates, piston rings, spark plugs, wheel bearings, fork seals, brake pads.
Carburetor Tuning Challenges:
Sensitivity to altitude and temperature changes requires periodic jetting adjustments.
Kips System Maintenance:
Requires periodic cleaning and inspection for proper operation to maintain optimal power delivery.
Suspension Maintenance:
Regular servicing of fork oil and seals is crucial for consistent performance.
Kawasaki Motorsports Legacy:
Kawasaki has a long-standing and successful history in professional motocross and off-road racing across various classes.
Kx Series Development:
The KX100 is part of Kawasaki's esteemed KX line, which has seen continuous development aimed at improving performance, handling, and rider feedback.
Manufacturing Location:
Primarily Japan