Motorcycle Segment:
Enduro / Off-Road Competition
Target Audience:
Enthusiast riders, off-road racers, and professional mechanics working on KTM EXC and XC-W models.
Key Competitors:
Yamaha WR450F, Honda CRF450X, Husqvarna WR450, Suzuki RM-Z450 (off-road variants).
Manual Utility:
Provides comprehensive guidance for maintenance, repair, and troubleshooting, essential for keeping these high-performance machines in optimal condition.
Engine Overhaul:
Complete engine disassembly, inspection, repair, and reassembly procedures for the 450cc single-cylinder engine.
Fuel System:
Carburetor (Keihin FCR) tuning, cleaning, and rebuilding; fuel pump and filter service.
Ignition System:
CDI unit testing, spark plug specifications, coil and wiring diagnosis.
Cooling System:
Radiator maintenance, coolant type and capacity, water pump service, fan operation.
Transmission And Clutch:
Gearbox disassembly, inspection, and reassembly; clutch operation, adjustment, and replacement procedures.
Suspension Front:
WP USD (Upside Down) fork service, oil type and level, seal replacement, adjustment procedures.
Suspension Rear:
WP PDS (Progressive Damping System) shock absorber service, nitrogen charging, seal head replacement, linkage bearing service.
Brake System:
Hydraulic brake system bleeding, caliper service, master cylinder overhaul, pad replacement, rotor specifications.
Electrical System:
Wiring diagrams, starter system troubleshooting, lighting circuits, battery maintenance, fuse specifications.
Frame And Bodywork:
Frame inspection, subframe mounting, plastics removal and installation, seat and tank procedures.
Wheels And Tires:
Hub maintenance, spoke tensioning, wheel bearing replacement, tire pressure recommendations, rim lock installation.
Routine Maintenance:
Oil and filter changes, air filter cleaning, chain lubrication and adjustment, spark plug replacement.
Troubleshooting Guides:
Diagnostic charts for common starting, running, and electrical issues.
Component Rebuilding:
Detailed instructions for rebuilding engine components, carburetors, and suspension units.
Suspension Tuning:
Guidance on adjusting suspension settings for various riding conditions and rider weights.
Torque Specifications:
Precise torque values for all critical fasteners throughout the motorcycle.
Special Tools:
Identification and usage of specific tools required for certain procedures.
Diagnostic Capability:
Advanced diagnostic procedures for electrical and mechanical systems.
Rebuild Level:
Comprehensive engine and component rebuild procedures suitable for experienced mechanics and serious enthusiasts.
Wiring Diagrams:
Detailed and accurate electrical wiring schematics for all model variations.
File Type:
PDF (Portable Document Format)
Searchability:
Searchable text for quick information retrieval.
Printability:
Printable pages for use in a workshop environment.
Image Resolution:
High-resolution images and diagrams ensuring clarity.
Digital Format:
Not applicable (digital PDF)
Digital Format:
Not applicable (digital PDF)
Engine Type:
4-stroke, single-cylinder, liquid-cooled
Bore X Stroke:
97 mm x 60.8 mm
Compression Ratio:
Approximately 12.5:1 (varies slightly by year/model)
Horsepower Approx:
50+ HP (at crank, varies by tuning)
Torque Approx:
45+ Nm (at crank, varies by tuning)
Carburetor Model:
Keihin FCR MX 39
Fuel Type:
Unleaded gasoline, minimum 95 octane (RON)
Oil Type:
KTM recommends Motorex Power Synt 4T 10W/50 (or equivalent JASO MA approved motorcycle oil)
Oil Capacity Engine Transmission:
1.1 Liters (for engine and transmission combined, dry fill)
Instrument Cluster:
Digital multifunction meter displaying speed, RPM, trip meters, and other essential information. Specific diagnostic codes can be accessed.
Ignition System:
Advanced CDI ignition system for precise fuel and spark timing.
Diagnostic Ports:
While not a modern OBD-II system, basic diagnostic capabilities through wire bridging or specialized KTM tools are sometimes applicable; manual may hint at this.
Engine Oil Change:
Every 10-15 hours of riding, or as recommended in the manual for specific conditions.
Air Filter Cleaning:
After every ride, or more frequently in dusty conditions.
Chain Lubrication Adjustment:
Every 500 km (300 miles) or as needed.
Valve Clearance Check:
Every 20-30 hours of riding (requires detailed inspection).
Coolant Type:
KTM recommends Motorex Coolant M5.0 or equivalent propylene glycol-based coolant.
Fork Oil Type:
KTM recommends WP Suspension Fluid (e.g., WP Suspension Fluid 4W or 5W depending on desired damping characteristics). Specific oil level is critical and detailed in the manual.
Clutch Slave Cylinder Seal:
Potential for seal leakage over time, requiring replacement. Manual provides seal kit P/N and replacement procedure.
Carburetor Jetting:
Stock jetting may require adjustment based on altitude and riding conditions. Manual provides baseline jetting and tuning guidance.
Suspension Maintenance:
Regular fork oil and seal maintenance is crucial for optimal performance and longevity. Manual outlines the process.
Ktm Legacy:
KTM has a long and successful history in off-road racing, particularly in enduro and motocross, renowned for its performance-oriented motorcycles.
Exc Xcw Lineage:
The EXC and XC-W lines represent KTM's dedication to creating potent and capable off-road machines, evolving with advancements in engine technology, suspension, and chassis design.
Manufacturing Location:
Austria (primarily)