Segment:
Off-road/Enduro motorcycles, popular for competitive riding and trail use.
Competitors 1999 2006:
Yamaha YZ125, YZ250, Honda CR125R, CR250R, Suzuki RM125, RM250, Kawasaki KX125, KX250, Husqvarna WR125/250.
Ktm Legacy:
KTM's reputation for high-performance, durable off-road motorcycles.
Model Strengths:
Strong engines, capable WP suspension, competitive pricing for performance.
Engine Coverage:
Complete engine overhaul, diagnostics, tuning, and repair for 125cc and 200cc engines.
Chassis Coverage:
Suspension, brakes, wheels, fuel system, cooling system, exhaust system, electrical system, frame, and bodywork.
Special Editions Covered:
KTM Six Days models for applicable years.
Estimated Pages:
High (typical for comprehensive service manuals, exact number not specified but expected to be substantial)
Type:
Service Repair Manual
Engine Mechanical:
Cylinder, piston, crankshaft, connecting rod, balancing shaft, camshaft (if applicable), valve train, timing, lubrication system.
Fuel System:
Carburetor (Mikuni VM/TM series typical), fuel pump, fuel lines, fuel tank, petcock operation and service.
Ignition System:
CDI unit, ignition coil, spark plug, stator, rotor, wiring diagrams.
Cooling System:
Radiator, hoses, thermostat, water pump, coolant specifications, bleeding procedures.
Exhaust System:
Exhaust pipe, silencer, mounting, repacking procedures for silencer.
Transmission And Clutch:
Gearbox operation, clutch assembly (perch, cable, plates, springs), shift mechanism, lubrication.
Chassis And Suspension:
Front fork (WP USD typical), rear shock absorber (WP PDS typical), linkages, bearings, steering head bearings.
Brakes:
Hydraulic brake system (front and rear), calipers, master cylinders, brake lines, brake pads, rotor specifications, fluid types.
Electrical System:
Wiring diagrams, lighting, battery, charging system (stator, regulator/rectifier), fuses, switches, horn, indicators.
Wheels And Tires:
Rim specifications, spoke tensioning, wheel bearings, tire size recommendations, inflation pressures.
Routine Maintenance:
Oil change intervals and specifications, filter replacement, spark plug inspection, chain adjustment and lubrication, air filter cleaning/replacement.
Engine Rebuild:
Complete engine disassembly, inspection, measurement of wear limits, reassembly procedures, torque specifications.
Carburetor Service:
Disassembly, cleaning, jetting specifications, float height adjustment, idle speed setting.
Suspension Service:
Fork oil change and level setting, fork seal replacement, rear shock service, linkage bearing maintenance.
Brake System Service:
Brake fluid flush and replacement, caliper piston service, pad replacement, bleeding procedures.
Electrical Troubleshooting:
Diagnostic procedures for common electrical faults, component testing, wiring harness repair.
Troubleshooting Guides:
Step-by-step diagnosis for starting issues, performance problems, cooling system faults, and electrical gremlins.
Depth:
Comprehensive from basic maintenance to complete engine and chassis overhauls.
Diagnostic Capabilities:
Detailed diagnostic procedures and specifications for identifying and resolving mechanical and electrical issues.
Special Tools:
Lists recommended special tools for specific repair procedures.
Type 125:
2-stroke, single-cylinder, liquid-cooled
Bore Stroke 125:
Approx. 54mm x 54.5mm (check manual for exact spec)
Displacement 125:
124.8 cc
Type 200:
2-stroke, single-cylinder, liquid-cooled
Bore Stroke 200:
Approx. 64mm x 62.2mm (check manual for exact spec)
Displacement 200:
193.2 cc
Horsepower 125:
Approx. 30-35 HP (varies by year and tuning)
Horsepower 200:
Approx. 38-42 HP (varies by year and tuning)
Carburetor Type:
Mikuni VM series (e.g., VM28/2 for 125, VM30/1 for 200 typical)
Fuel Type:
Premium Unleaded Gasoline (91 octane or higher recommended)
2 Stroke Oil Mix:
Pre-mix (manual will specify ratio, typically 1:40 or 1:50 for Motorex or similar quality oil)
Engine Oil Change:
Every 15-20 hours of riding, or annually. Refer to manual for specific guidance.
Air Filter Cleaning:
After every few rides, or more frequently in dusty conditions.
Spark Plug Inspection:
Every 20-30 hours of riding.
Piston Ring Replacement:
Typically every 50-100 hours, depending on usage and maintenance.
Engine Oil Type:
Fully synthetic 2-stroke engine oil (e.g., Motorex Cross Power 2T or similar).
Coolant Type:
Ethylene glycol based coolant with anti-corrosion additives (e.g., Motul Motocool Expert or equivalent).
Brake Fluid Type:
DOT 4 Hydraulic Brake Fluid (e.g., Brembo DOT 4 or equivalent).
Common Wear Items:
Clutch plates, piston rings, wheel bearings, steering head bearings, swingarm bearings, exhaust packing.
Potential Faults:
Carburetor jetting sensitivity to altitude/temperature, occasional electrical connector issues, water pump seal leaks if maintenance is neglected.