2002-2008 KTM 50 AC/LC Repair Manual
Service, repair, and maintenance information for KTM 50 AC/LC models from 2002-2008. Includes engine, chassis, and electrical system data. Part 3.206.047-E.
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Sample pages from the 2002-2008 KTM 50 AC/LC Repair Manual manual
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KTM Models Covered & Key Technical Specifications
Models: KTM 50 AC, KTM 50 LC, KTM 50 Mini Adventure, KTM 50 Junior Adventure, KTM 50 Senior Adventure, KTM 50 SX Pro Junior LC, KTM 50 SX Pro Senior LC, KTM 50 SX, KTM 50 Supermoto, KTM 50 Mini SX
Sub-models / Variants: AC (Air-cooled), LC (Liquid-cooled), Mini, Junior, Senior, Pro, Supermoto, SX, Adventure
Build Years: 2002–2008
Technical Data:
- Engine Displacement: 49.0 cm³
- Bore/Stroke: 39.5 / 40 mm
- Coolant Capacity: 0.5 liters
- Transmission Oil Capacity: 0.15–0.2 liters
- Spark Plug Electrode Gap: 0.6 mm
- Piston Fitting Clearance (AC): 0.055–0.065 mm
- Piston Fitting Clearance (LC): 0.045–0.055 mm
- Clutch engagement speed (AC): 4000–4500 rpm
- Clutch engagement speed (LC): 8500–9000 rpm
- Lateral runout (crankshaft journal): max 0.05 mm
KTM Manual Features & Content Preview
Technical Specifications and Documentation for 2002–2008 KTM 50 AC/LC
- Covers 2002–2008 KTM 50 AC and 50 LC motorcycle variants, including Mini, Junior, Senior, SX, and Supermoto configurations.
- Official KTM publication Art.-Nr. 3.206.047-E, edition 6/2008.
- Contains 47 detailed exploded-view diagrams, 14 electrical wiring schematics, 5 comprehensive tightening torque tables, and 12 maintenance scheduling charts.
- Accessible from your device as soon as the order is placed.
- Suitable for printing individual sections for shop-floor use.
- Re-download the file any time, no expiration.
- This 350-page manual is the factory-authorized reference for the 2002–2008 KTM 50 AC and LC engine series, documenting all specifications and assembly standards for these models.
Manual Organization and Engine Scope
This 350-page factory manual provides the technical framework for the 2002–2008 KTM 50 AC and 50 LC model range. The documentation is organized into clear sections covering engine removal, engine disassembly, servicing individual components, engine assembly, and troubleshooting. Coverage extends from the earliest 2002 base models through the 2008 production updates, detailing the specific technical evolutions of the AC and LC engine platforms. It details the interaction between the transmission, clutch assembly, and cooling system, while highlighting the necessary service procedures for maintenance and repair.
Specification Previews and Technical Data
Specifications are provided for the entire 2002–2008 KTM 50 AC and 50 LC range to ensure correct part identification and adjustment. Cylinder head bolt torque values for the 2002–2008 KTM 50 AC and 50 LC are documented at 15 Nm. The transmission oil capacity for the 2002–2008 KTM 50 AC and 50 LC is specified at 0.15–0.2 liters. Valve clearance for the intake is irrelevant to this 2-stroke design, however, the spark plug gap is documented at 0.6 mm across all models. Understanding factory workshop documentation is structured enables a more precise approach to diagnosing the 2-stroke cooling and fuel systems described in these chapters.
Note: All service data shown here is for reference only — qualified technicians and the original OEM documentation remain the authoritative source for any hands-on work.
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