KTM 250–610 Racing Repair Manual Set, 2000–2005 (P/N 3.206.023-E)

The owner’s manual explains controls, chassis care and routine maintenance. The motor repair manual adds internal engine work and electrical diagnosis, while the WP publications cover component-level suspension overhaul.

The WP overhaul instructions apply to the specific fork and shock versions listed above. The shock manual details internal MCC compression-control service; DCC compression-unit overhaul requires a separate WP manual, which is not included.

PDF Search, Bookmarks and Wiring Detail

Text search and diagram navigation: The handbooks contain searchable text, but many wiring-diagram labels are not searchable. Embedded bookmarks provide access to all four publications and their main sections. Small wiring labels require zooming.

One printable, 410-page PDF, including one compilation cover and all publication covers, blank pages, service bulletins and wiring appendices.

Engine Overhaul, Electrical Tests and WP Suspension

These selected contents outline the repair coverage rather than reproduce the complete contents list. Other topics include electronic speedometer functions and silencer-packing replacement.

• Engine repair: Step-by-step procedures for engine removal, crankcase separation, crankshaft and balancer-shaft service, cylinder-head work, valve timing and valve-clearance adjustment.

• Transmission and clutch: Gearbox disassembly, shaft and shift-mechanism inspection, clutch wear checks, model-specific assembly details and hydraulic-clutch bleeding.

• Keihin carburetors: FCR and FCR-MX disassembly and assembly, accelerator-pump inspection, float-height checks, idle adjustment and throttle-position-sensor testing.

• Kokusan electrical diagnosis: Ignition and charging-system tests, starter-motor and relay checks, peak-voltage measurements and model-specific wiring diagrams.

• Lubrication and cooling: Oil-circuit illustrations, filter and screen service, oil-pump inspection, water-pump seal work and cooling-system bleeding.

• Chassis maintenance: Brake-pad replacement, wheel removal and installation, steering-head bearing adjustment, chain inspection and suspension setup.

• WP suspension overhaul: Fork-leg and cartridge rebuilding, compression and rebound assemblies, shock disassembly, seal and bushing work, bleeding and nitrogen-charging procedures.

The motor repair manual is written for qualified, professionally trained mechanics; the owner’s manual separately explains controls and rider checks.

Engine Inspection and Model-Specific Assembly

Direct access to factory tolerances, wear limits and assembly drawings provides a workbench reference for checking parts before reassembly. Year-specific clutch illustrations distinguish changes in hub bearings, driving sleeves and disc packs so mechanics can match the assembly details to the engine being serviced.

The component chapters include Nikasil cylinder inspection, piston-and-cylinder measurement, crankshaft end-play correction and valve-guide checks. Timing-chain tensioner coverage includes inspection and installation, rather than a separate internal rebuild procedure.

Primary-gear notes distinguish left- and right-hand collar nuts. For the 250 EXC, the manual warns that incorrect counterholding during related disassembly can bend the crankshaft locating screw and damage the engine housing.

Camshaft assembly instructions identify the risk of damaging the gasket-carrier shaft seals without mounting sleeve 590.29.005.010.

Keihin Fuel-System and Kokusan Test Coverage

Separate exploded views and procedures distinguish the FCR 35/39 from the FCR-MX 37/39/41 carburetors. Throttle-position-sensor coverage includes resistance checks, position adjustment, removal and installation.

Electrical sections distinguish static ignition measurements from static and dynamic generator tests, with instructions for peak-voltage adapter 584.29.042.000. CDI-unit function testing requires an ignition test bench.

The wiring section separates regional layouts, including the 400/520 EXC Racing 2000 USA and EXC Racing 2004 diagrams. The troubleshooting charts address starting faults, poor running, overheating, oil consumption and charging problems.

Chassis Setup and WP Rebuild Detail

The owner’s manual includes rider-weight suspension setup, static and riding sag assessment, and SX fork-offset adjustment. Model-specific suspension tables accompany the maintenance instructions.

The WP fork and shock manuals each include an exploded assembly view. Fork procedures extend into the cartridge, compression holder and rebound-tap assemblies; shock procedures include separation-piston positioning, DU-bush calibration and bleeding-equipment references.

Always review factory safety guidelines before beginning any teardown, ensuring your workspace is properly ventilated and secure to prevent injury or equipment damage.

Selected Lubrication and Assembly Specifications

The lubrication tables list an engine-oil quantity of 1.25 liters. The temperature chart specifies Motorex Power Synt 4T 10W/50 above 0°C and 5W/40 below 0°C.

Cold intake and exhaust valve clearance is specified at 0.12 mm. The M10 cylinder-head fasteners have staged 40/50 Nm tightening specifications; the chassis tables list 60 Nm for M10 engine-mounting bolts and 80 Nm for the rear-wheel spindle collar nut.