2004-2006 KTM 250/300 SX / EXC / XC Repair Manual (162 P.)
2004-2006 KTM 250/300 models with complete engine assembly procedures, TVC system specifications, and clutch/transmission service intervals. Reference: 3.206.032-E
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Sample pages from the 2004-2006 KTM 250/300 SX / EXC / XC Repair Manual (162 P.) manual
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Models Covered & Key Technical Specifications
KTM 250/300 SX, EXC, XC Series (3.206.032-E) — 2004–2006 Tactical Expert Documentation | 250/300 Series Repository.
- Calibrated Displacement Data: Engine volume reaches 249 ccm (250 models) and 293.15 ccm (300 models) is specified as the cylinder chamber Architecture.
- Nominal Bore Specification: For optimal combustion, 66.4 mm (250 models) and 72 mm (300 models) provides the piston bore dimension Protocol.
- Documented Stroke Length: The crankshaft throw is rated at 72 mm for all 250/300 variants Norms.
- Principal Coolant Capacity: The radiator system supports 1.2 litres (50% anti-freeze, 50% pure water) minimum fluid volume Margin.
- Key Transmission Oil Specs: Tank volume reaches 0.7 liters Motorex Top Speed 4T 15W50 for gear lubrication Bounds.
- Verified Generator Output: Generator specifications is calibrated to 12V / 110 W (EU models) and 12V / 40 W (USA models) electrical power generation Topology.
Professional Workshop Service Manual & Technical Specifications
Industrial Wiring Reference Manual: Engines (Gasoline) Complete Solutions KTM 250 SX, 250 EXC, 250 XC, 300 SX, 300 EXC, 300 XC Repair Manual (2004-2006) OEM-Documentation
Equipment-Series: KTM 250 SX, 250 EXC, 250 XC, 300 SX, 300 EXC, 300 XC (2004–2006) // Subsystem-Focus: Engine Service and Electrical System Logic // Equipment-Series: Two-stroke liquid-cooled engines with comprehensive technical documentation.
| Document Overview | Coverage Area | Reference Details |
|---|---|---|
| Engine Systems | Complete specifications provided for 249 cc (250 models) and 293.15 cc (300 models) | Bore/stroke dimensions, bearing types documented |
| Transmission & Drivetrain | Five-speed claw-actuated gearbox with primary drive specifications | Gear ratios and torque specifications documented |
| Electrical Architecture | KOKUSAN ignition systems with generator output data | Wiring diagrams for all model years included |
Diagnostic procedures address the engine overhaul, and procedures examine the electrical systems, fuel carburetor setup, and troubleshooting resource material, conveying the comprehensive service foundation that technicians require for systematic repair and maintenance operations. The document encompasses engine disassembly procedures, detailed component servicing guidelines, transmission assembly specifications, and clutch system documentation spanning multiple model years.
Parts identification is covered for engine housings, crankshaft assemblies, and transmission components. Removal procedures are documented for cylinder heads, piston assemblies, and primary drive gears. Technical specifications are provided for bearing tolerances, piston clearances, and crankshaft journal measurements. Factory specifications are documented for the Twin Valve Control exhaust system operation points, including TVC start and fully-open timing across spring variants. Engine rebuild procedures are documented for reassembly sequence, proper gasket installation, and shaft seal ring replacement protocols, with the manual covering both 2004–2005 and 2006 model iterations including updated 2006 modifications.
The document documents torque specifications for engine fasteners to ensure proper assembly security.
Wiring diagrams are included for the 250/300 EXC, SX, and XC-W variants across all three model years. Carburetor settings tables reference temperature ranges, altitude corrections, and jet needle positions for Keihin PWK-series carburetors. Periodic maintenance schedules outline service intervals in hours and kilometers, distinguishing between standard hobby use and competitive enduro racing requirements. Electrical testing procedures include peak voltage adapter measurements, stator and generator output verification, and CDI unit diagnostic reference data.
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