Model:
400 SX, 450 SX, 400 MXC, 450 MXC, 400 XC, 450 XC
Year Range:
2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
Product Type:
Factory Service Repair Manual
Model Designations:
SX (Motocross), MXC (Cross-Country), XC (Cross-Country variants, often similar to MXC but may have slight differences).
Positioning:
Official Factory Service Repair Manual, providing the same information as professional KTM technicians.
Comparison:
Distinguished from 3rd party manuals by being an 'Actual Genuine Repair Service Factory Manual'.
Features:
Downloadable PDF, printable, comprehensive coverage, detailed illustrations/diagrams, advanced troubleshooting, direct access to factory-level information, significant potential labor cost savings.
Cost Savings:
Enables owners to perform maintenance and repairs themselves, potentially saving $50-$60 per hour in shop labor costs.
Coverage:
Complete repair and maintenance for all specified models and years.
Estimated Page Count:
Hundreds of pages (specific count not provided but implied to be extensive).
Type:
Factory Service Repair Manual
Source Authenticity:
Actual Genuine Factory Manuals, not third-party reproductions.
Delivery Method:
Instant download link provided on checkout page after payment.
Software Requirements:
Adobe PDF Reader required.
Systems:
General Information, Fuel System, 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.
Electrical System Detail:
Detailed wiring diagrams, troubleshooting for lighting, ignition, and charging systems (if applicable to specific trims).
Suspension Service:
Detailed procedures for front fork (USD) and rear shock absorber maintenance, including seal replacement, oil changes, and adjustments.
Brake System Service:
Procedures for hydraulic brake caliper service, master cylinder overhaul, brake pad replacement, and bleeding the brake system.
Frame And Bodywork:
Information on frame inspection, mounting points for body panels, subframe, and related components.
Fuel System Detail:
Comprehensive coverage of fuel tank, petcock, fuel lines, carburetor disassembly, cleaning, and adjustment.
Procedures:
Maintenance, troubleshooting, repair, diagnostics, rebuild, refurbishment, restoration, engine fault symptom diagnosis, part evaluation, part testing, wiring diagram tracing, engine management system analysis, common fixes, pre-emptive maintenance tips.
Rebuild Procedures:
Comprehensive step-by-step instructions for engine rebuilds, including piston replacement, cylinder inspection, crankshaft and connecting rod service.
Wheel And Tire Service:
Instructions for wheel bearing replacement, tire mounting and balancing, spoke tension checks, and rim repairs.
Suspension Tuning:
Guidance on adjusting suspension sag, compression, and rebound damping for different riding conditions and rider preferences.
Depth:
Comprehensive, step-by-step instructions, advanced troubleshooting, detailed illustrations, diagrams, photos, and specifications, covering everything professional technicians know.
Diagnostic Capabilities:
Includes an advanced troubleshooting guide to diagnose and correct virtually any problem the vehicle might encounter.
Engine Type:
Liquid-cooled, 4-stroke single-cylinder (specific engine codes/displacements would be detailed within the manual, typically 400cc and 450cc variants for these models).
Bore Stroke:
Specific bore and stroke dimensions for 400cc and 450cc engines will be provided in the manual, crucial for component identification and rebuilds.
Engine Cooling:
Liquid-cooled, with detailed procedures for radiator, water pump, and coolant system maintenance.
Performance Details:
Manual provides all specifications for engine performance, including power, torque, and tuning procedures. Actual figures vary by specific model year and variant.
Compression Ratio:
Manual will list the correct compression ratios for various engine configurations.
Fuel System Type:
Carburetor (likely Keihin or similar) for the specified model years, with detailed information on fuel delivery, jets, and tuning.
Carburetor Model:
Likely Keihin PWK series or similar, with detailed tuning and jetting information specific to each model variant.
Overall Dimensions:
Specific dimensions for length, width, and height vary by model year and configuration (SX, MXC, XC). Manual covers chassis and frame dimensions.
Dry Weight:
Dry weight specifications will be detailed in the manual, typically ranging from 105-115 kg depending on model and year.
Wet Weight:
Wet weight information, including fluid capacities, will be available in the manual.
Safety Ratings:
N/A (Off-road motorcycles typically do not have NHTSA/Euro NCAP ratings. Safety information pertains to operational safety and component integrity).
Active Safety:
Brake system operation, suspension tuning for stability, steering geometry for control.
Passive Safety:
Frame integrity, component mounting security, handlebar protection (discussed in context of repair).
Recommended Intervals:
Manual details specific service intervals for oil changes, air filter cleaning, spark plug replacement, valve adjustments, and chain maintenance based on operating hours or mileage.
Valve Adjustment Interval:
Details on checking and adjusting valve clearances, typically at specific hour intervals (e.g., every 15-25 hours of riding).
Engine Oil Spec:
Manual will specify appropriate viscosity grades (e.g., Motorex SAE 10W-50 or 15W-50) and API ratings for engine oil and clutch lubrication.
Coolant Spec:
Specifies type of coolant (e.g., ethylene glycol based) and recommended mixture ratio for the cooling system.
Brake Fluid Spec:
Specifies DOT 4 or DOT 5.1 brake fluid for hydraulic brake systems.
Transmission Oil Spec:
Manual details specifications for transmission oil, often the same as engine oil for wet clutch designs.
Fork Oil Spec:
Specifications for suspension fork oil viscosity and quantity, critical for proper damping performance.
Gearbox Oil Capacity:
Specific oil capacity for the gearbox and clutch lubrication system will be detailed.
Common Problems:
Manual helps diagnose and address common issues such as carburetor tuning problems, suspension wear, electrical connector corrosion, and exhaust system leaks.
Tune Up Tasks:
Includes detailed instructions for carburetor adjustments, ignition timing checks (if applicable), and valve clearance verification.
Brand Focus:
KTM is renowned for its off-road motorcycles, excelling in motocross, enduro, and rally racing.
Model Lineage:
The SX, MXC, and XC lines represent KTM's competitive offerings in motocross and cross-country racing, with continuous development through these years.
Key Developments During Era:
This period saw advancements in chassis geometry, engine performance tuning, and improved suspension components from leading manufacturers like WP.
Production Period:
The covered period of 2000-2007 saw significant evolution in KTM's off-road platforms, including chassis design, engine performance, and suspension technology.