Segment:
Performance Off-Road (Enduro/Motocross focus with potential for dual-sport conversion)
Target Audience:
Enthusiasts, racers, mechanics performing maintenance and repairs
Competitors:
Yamaha WR450F, Honda CRF450X, KTM 450 EXC
Vehicle Focus:
Aggressive performance, off-road capability, robust construction
Manual Value:
Essential for proper maintenance, diagnosis, and repair to maximize performance and longevity
Engine:
Complete overhaul, diagnostics, tuning, cooling system, lubrication system
Fuel System:
Carburetor (likely Keihin FCR type), fuel pump, fuel tank, fuel lines
Transmission:
Clutch, gearbox, shift mechanism, lubrication
Chassis:
Frame, swingarm, linkages, suspension (front and rear), steering
Electrical System:
Ignition system, lighting, charging system, starter motor, wiring diagrams
Brakes:
Front and rear brake systems, master cylinders, calipers, rotors, fluid replacement
Wheels And Tires:
Wheel bearing service, tire replacement, spoke tension
Bodywork:
Fairings, seat, fenders, plastics, graphics
Maintenance:
Scheduled maintenance intervals, oil changes, filter replacements, chain adjustments
Troubleshooting:
Diagnostic charts for common problems, fault finding
Repair:
Component disassembly, reassembly, and adjustment for all major systems
Special Tools:
Identification and usage of specialized tools required for specific procedures
Depth:
Comprehensive; covers everything from basic checks to complete engine rebuilds and electrical system diagnostics
Type:
Liquid-cooled, 4-stroke, DOHC, 4-valve single cylinder
Displacement:
449 cc (27.4 cu in)
Bore X Stroke:
92.0 x 67.1 mm (3.62 x 2.64 in) - typical for this era
Compression Ratio:
12.0:1 (typical for this model)
Horsepower:
Approx. 50-55 HP (estimated at crank, varies by market and tune)
Torque:
Approx. 32-35 lb-ft (estimated at crank, varies by market and tune)
Carburetor:
Keihin FCR40 (likely) with Accelerator Pump
Fuel Type:
Unleaded gasoline, 91+ octane recommended
Type:
Digital CDI with electronic advance
Coolant Capacity:
Approx. 1.8 L (1.9 US qt)
Type:
5-speed constant mesh, sequential
Clutch:
Wet, multi-disc, manual
Gear Ratios:
Specific ratios covered in manual, designed for off-road torque
Engine Oil Capacity:
Approx. 1.8 L (1.9 US qt) with filter change
Engine Oil Type:
SAE 10W-40, API SG or higher, JASO MA certified
Length:
Approx. 2,200 mm (86.6 in)
Width:
Approx. 825 mm (32.5 in)
Height:
Approx. 1,255 mm (49.4 in)
Dry Weight:
Approx. 114 kg (251.3 lbs)
Wet Weight:
Approx. 125 kg (275.6 lbs) (with all fluids)
Wheelbase:
Approx. 1,475 mm (58.1 in)
Ground Clearance:
Approx. 325 mm (12.8 in)
Seat Height:
Approx. 955 mm (37.6 in)
Certification:
Not typically rated by safety organizations like NHTSA/IIHS as it's an off-road vehicle
Braking System:
Hydraulic disc brakes front and rear
Suspension Features:
Adjustable front forks (compression, rebound) and rear shock (preload, compression, rebound)
Lighting:
Headlight, taillight/stoplight (may vary based on original configuration/market)
Oil Change Interval:
Every 600 miles (1000 km) or 3 months, whichever comes first (typical recommendation)
Air Filter Cleaning:
Every 10-15 hours of riding in dusty conditions, or 30-40 hours in clean conditions
Chain Lubrication Adjustment:
Every 300 miles (500 km) or after washing/wet riding
Valve Clearance Check:
Every 1,000-1,500 miles (1600-2400 km) or annually
Fork Oil Type:
Kawasaki KSH-10W or equivalent (e.g., Showa SS-10W, Golden Spectro Extra Light)
Fork Oil Level:
Specified in manual, typically around 120-150mm from the top of the inner tube with spring removed and fork compressed
Coolant Type:
Permanent type antifreeze (ethylene glycol based) with distilled water, 50/50 mix
Common Issues:
Carburetor jetting sensitivity to altitude and temperature, potential clutch wear under extreme use, chain and sprockets are wear items.
Preventative Maintenance:
Regular cleaning of air filter, proper chain tension and lubrication, diligent oil changes are critical for longevity.
Heritage:
Kawasaki has a long history of producing competitive off-road motorcycles, including the esteemed KX series.
Predecessors:
The KLX450R builds upon Kawasaki's experience with 4-stroke motocross and enduro technology, often sharing components or design philosophies with the KX450F.
Features Introduction:
Introduced as a dedicated off-road/enduro machine, often featuring a slightly wider gear ratio spread and more user-friendly power delivery compared to its motocross sibling.
Manufacturing Location:
Japan (typical for Kawasaki motorcycles)
Production Period:
The KLX450R model line has been produced in various iterations, with the 2008-2011 period representing a specific generation.