Model:
EXC, MXC, SMR, SX, SXS Racing Crate
Model Variants:
250, 400, 450, 520, 525, 540, 560, 610
Year Range:
2000, 2001, 2002, 2003, 2004, 2005, 2006
Chassis Codes:
Varies by specific model and year (e.g., EXC, SX, MXC designations with internal KTM project codes)
Engine Codes:
Varies by specific engine displacement (e.g., LC4 variants, specific engine family identifiers)
Target Audience:
KTM owners, independent repair shops, and professional motorcycle technicians.
Value Proposition:
Provides comprehensive, factory-level information for maintenance, repair, and troubleshooting, enabling cost savings and proper upkeep.
Differentiation:
Offers complete factory coverage for a wide range of model years and engine displacements within the EXC, MXC, SMR, SX, and SXS series, differentiating from less comprehensive or aftermarket guides.
Coverage Breadth:
Covers multiple engine sizes (250cc to 610cc) and competitive disciplines (Enduro, Motocross, Supermoto).
Accessibility:
Instant digital download for immediate use on multiple devices, with lifetime access.
Engine Mechanical:
Engine disassembly, assembly, overhaul, component replacement (pistons, rings, valves, crankshaft, connecting rods), cylinder head, valve train.
Fuel System:
Carburetor adjustment and overhaul (if applicable), fuel injection system diagnostics and repair (if applicable), fuel pump, fuel filter, fuel lines.
Ignition System:
Ignition coil testing, spark plug specifications, CDI unit diagnostics, stator and rotor inspection.
Exhaust System:
Exhaust pipe inspection, muffler repair and replacement, catalytic converter diagnosis (if equipped).
Cooling System:
Radiator inspection, coolant flow diagnosis, water pump service, thermostat replacement, cooling fan operation.
Transmission And Drivetrain:
Clutch adjustment and overhaul, gear selection mechanisms, internal transmission components, chain and sprocket maintenance, final drive inspection.
Suspension Front:
Fork oil change and service, fork seal replacement, spring replacement, damping adjustment, steering head bearing service.
Suspension Rear:
Shock absorber service, linkage lubrication, rear shock adjustment (preload, rebound, compression), swingarm bearing inspection.
Brakes Front:
Brake pad replacement, caliper service, brake line inspection and replacement, master cylinder overhaul, brake fluid specifications and bleeding procedures.
Brakes Rear:
Brake pad replacement, caliper service, brake line inspection and replacement, master cylinder overhaul, brake fluid specifications and bleeding procedures.
Electrical System:
Wiring diagrams, battery maintenance and testing, charging system diagnosis (stator, regulator/rectifier), lighting system troubleshooting, starter motor operation, horn, switches.
Chassis And Frame:
Frame inspection, subframe inspection, footpeg mounting, rider controls (handlebars, levers, pedals).
Bodywork And Trim:
Fairing removal and installation, seat maintenance, fender replacement, graphics application.
Wheels And Tires:
Tire pressure specifications, wheel bearing inspection and replacement, spoke tensioning (if applicable), rim maintenance.
Routine Maintenance:
Oil change intervals, filter replacement, chain lubrication and adjustment, air filter cleaning/replacement, spark plug checks, brake fluid checks, coolant checks.
Troubleshooting:
Systematic diagnosis of common and uncommon problems, fault finding charts, error code interpretation (if applicable).
Repair Procedures:
Step-by-step instructions for component removal, installation, and repair for all covered systems.
Overhaul Procedures:
Detailed instructions for complete engine, transmission, and suspension overhauls.
Assembly Instructions:
Torque specifications for all fasteners, reassembly sequences, alignment procedures.
Wiring Diagrams:
Complete and detailed electrical schematics for all models and variants covered.
Depth:
Professional-level diagnostics, repair, and rebuilding. Suitable for both experienced mechanics and dedicated enthusiasts.
Visual Aids:
Hundreds of detailed photos and exploded diagrams illustrating procedures and component identification.
Engine Type:
4-Stroke (various displacements)
Engine Family:
LC4 (Liquid Cooled, Single Cylinder) and potentially related engines for smaller displacements.
Bore Stroke:
Varies significantly by displacement (e.g., 250, 400, 450, 525, 560, 610cc models).
Horsepower:
Not specified in product information, but varies by displacement (typically 40-60+ HP for this range).
Torque:
Not specified in product information, but varies by displacement.
Fuel Delivery:
Carbureted (Mikuni, Keihin) or Fuel Injection (EFI) depending on specific model and year.
Fuel Type:
Unleaded gasoline (Octane rating specified in manual).
Oil Type:
JASO MA certified motorcycle-specific 4-stroke engine oil (viscosity varies with temperature, e.g., 10W-40, 15W-50).
Oil Capacity:
Varies by model and oil filter change; typically around 1.5-2.5 liters.
Oil Change Interval:
Typically 5-15 hours of riding for competitive use, or based on mileage/time for less strenuous use. Specifics in manual.
Air Filter Cleaning:
Frequent cleaning recommended, especially in dusty conditions. Manual will provide guidelines.
Valve Clearance Check:
Typically every 100-200 hours of riding. Critical for engine longevity. Detailed procedure in manual.
Fork Oil Viscosity:
Commonly SAE 5W, 7.5W, or 10W, depending on model and desired damping characteristics. Manual will specify.
Brake Fluid Type:
DOT 4 or DOT 5.1 (check manual for specific recommendation and any ABS system considerations if applicable).
Coolant Type:
Proprietary KTM coolant or a high-quality ethylene glycol based coolant with corrosion inhibitors. Manual will specify mix ratio.
Common Wear Items:
Clutch plates, wheel bearings, steering head bearings, fork seals, chain and sprockets, brake pads.
Specific Concerns:
Early LC4 engines sometimes had issues with starter clutch durability or cam chain tensioners; later models improved. Manual will detail specific checks for each year/model.