Segment:
Performance Off-Road Motorcycles (Enduro / Motocross variants)
Target Audience:
Enthusiast owners, amateur racers, mechanics, and service technicians working on KTM 125/200 EGS, EXC, and SIX DAYS models.
Competitors:
Honda CR series, Yamaha YZ series, Suzuki RM series, Kawasaki KX series, Husqvarna models.
Vehicle Philosophy:
KTM's 'Ready to Race' philosophy, focusing on lightweight construction, powerful engines, and advanced suspension for competitive off-road performance.
Manual Value Proposition:
Provides comprehensive, detailed, and accurate repair and maintenance procedures essential for keeping these high-performance off-road machines in optimal condition.
Covered Years:
1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
Covered Models:
125 EGS, 200 EGS, EXC (all variants), SIX DAYS (all variants)
Estimated Page Count:
High (typical for comprehensive workshop manuals, often 300-600+ pages)
Manual Type:
Workshop Service Manual / Repair Manual
Language:
English (standard for most KTM manuals)
Engine Systems:
Engine disassembly, assembly, tuning, troubleshooting, lubrication, cooling, fuel delivery (carburetor), exhaust, ignition system, starting system, engine management (if applicable to specific models/years).
Drivetrain Systems:
Transmission disassembly, assembly, maintenance, troubleshooting, clutch operation, final drive (chain/sprockets).
Chassis Systems:
Frame inspection and repair, suspension (forks, rear shock), steering system, wheel and tire servicing, brake system (hydraulic front and rear), electrical system (wiring diagrams, component testing, lighting, charging).
Bodywork And Ergonomics:
Fairing removal and installation, seat, fuel tank, fenders, handlebars, levers, controls.
Maintenance Procedures:
Scheduled maintenance, oil changes, filter replacements (air, oil, fuel), chain adjustment, brake fluid flush, spark plug replacement, valve clearance checks/adjustment, coolant checks/replacement.
Troubleshooting Procedures:
Diagnostic flowcharts, common problem identification and solutions, electrical system diagnostics, engine performance issues, starting problems.
Repair Procedures:
Step-by-step instructions for component removal, overhaul, and installation of engine, transmission, suspension, brakes, electrical components, and body parts.
Special Tools And Techniques:
Identification of specific KTM special tools required for certain procedures, torque specifications, assembly sequences, and critical adjustments.
Diagnostic Capabilities:
Advanced diagnostics including electrical component testing, ignition system analysis, and fuel system troubleshooting.
Rebuild Information:
Detailed procedures for complete engine and transmission rebuilds, including piston, ring, cylinder, crankshaft, and gearbox component overhauls.
Electrical Schematics:
Comprehensive wiring diagrams for all electrical systems, including lighting, ignition, charging, and instrumentation.
Engine Type:
2-Stroke Single Cylinder
Bore X Stroke 125:
54 mm x 54.5 mm (typical for 125 EXC models of this era)
Bore X Stroke 200:
64 mm x 62.4 mm (typical for 200 EXC models of this era)
Displacement 125:
124.8 cc
Displacement 200:
199.6 cc
Cooling System:
Liquid-cooled
Ignition System:
Digital CDI (Capacitor Discharge Ignition)
Horsepower 125:
Approx. 30-35 HP (depending on specific model/tuning)
Horsepower 200:
Approx. 38-42 HP (depending on specific model/tuning)
Fuel Delivery:
Carburetor (e.g., Keihin PWK or similar)
Carburetor Size 125:
36 mm (typical)
Carburetor Size 200:
38 mm (typical)
Fuel Type:
Unleaded Gasoline (RON 95 or higher recommended, specific octane rating in manual)
Premix Ratio:
Typically 1:40 or 1:50 (synthetic 2-stroke oil) - refer to manual for exact specification
Safety Standards:
Designed to meet off-road competition and general safety standards of the era.
Braking System:
Hydraulic disc brakes, front and rear. Often Brembo calipers.
Suspension Design:
Upside-down telescopic front forks (e.g., WP), Monoshock rear suspension with PDS (Power শোষণ System) or similar linkage.
Frame Construction:
High-strength steel trellis provides rigidity and impact resistance.
Instrumentation:
Digital tachometer, speedometer, odometer, trip meter, and basic indicator lights.
Electronic Aids:
Generally minimal electronic aids on these models, focusing on mechanical performance and rider control.
Diagnostic Ports:
May have basic diagnostic connectors for troubleshooting specific electrical components, but not OBD-II like cars.
Oil Change Interval:
Every 15-20 operating hours or annually (for transmission oil). Engine oil (premix) is constantly replenished.
Air Filter Cleaning:
Every 5-10 operating hours or as needed based on conditions.
Spark Plug Replacement:
Every 20-30 operating hours (refer to manual for specific plug type and gap)
Chain And Sprockets:
Inspect for wear and adjust tension regularly (every few rides). Replacement depends on usage and maintenance.
Coolant Type:
Ethylene glycol-based coolant with corrosion inhibitors (e.g., Motorex M3.0 or equivalent). Refer to manual for specific type and mixture ratio.
Brake Fluid Type:
DOT 4 hydraulic brake fluid
Carburetor Tuning:
Sensitivity to jetting changes based on altitude and temperature; requires proper tuning for optimal performance.
Clutch Wear:
Clutch plates can wear with aggressive riding; regular inspection and adjustment are necessary.
Suspension Maintenance:
Regular fork seal inspections and rear shock servicing are critical for maintaining optimal handling.
Power Valve Cleaning:
The exhaust power valve mechanism requires periodic cleaning to prevent sticking and maintain performance.
Ktm Motorsport Focus:
KTM has a long and successful history in off-road motorsports, including motocross, enduro, and rally racing, which heavily influences their production models.
Exc Lineage:
The EXC line represents KTM's enduro-focused off-road motorcycles, known for their versatility in various terrain types. The 125/200 variants offer accessible performance within this range.
Six Days Variants:
The 'Six Days' designation refers to special edition models commemorating the International Six Days Enduro (ISDE), often featuring enhanced components and special graphics.
Manufacturing Location:
Primarily Austria (Mattighofen, Austria)