Category:
Performance Off-Road Motorcycles (Enduro/Cross Country)
Target User:
Enthusiast riders, off-road racers, recreational riders
Key Competitors:
Husaberg, Yamaha YZ/WR series, Honda CR/CRF series, Suzuki RM/RMX series, Kawasaki KX/KDX series
Vehicle Philosophy:
Lightweight, powerful, agile, race-oriented performance
Manual Importance:
Crucial for understanding specific maintenance requirements to preserve performance and longevity.
Engine:
Engine operation, lubrication, cooling (liquid-cooled models)
Transmission:
Gearbox operation, clutch
Chassis:
Frame, suspension (front and rear), steering, wheels, tires
Brakes:
Hydraulic disc brake operation, fluid checks
Electrical:
Lighting, ignition system basics, battery maintenance
Fuel System:
Carburetor operation, fuel type recommendations
Maintenance:
Routine checks, cleaning, chain adjustment, air filter service
Adjustments:
Clutch lever free play, throttle cable free play, brake lever adjustments
Inspections:
Tire pressure, brake pad wear, chain tension, fluid levels
Troubleshooting:
Basic diagnostic tips for common operational issues (e.g., starting problems)
Post Ride Checks:
Recommended checks after each ride (e.g., tire pressure, chain, levers).
Depth:
Operation and routine maintenance focused; not a full workshop/service manual
Diagnostic Level:
Basic troubleshooting guidance, not in-depth repair procedures.
Coverage Scope:
Owner's Manual - focused on user operation, basic checks, and preventative maintenance.
Digital Format Options:
PDF (if digitally sourced), Print
Print Quality:
High-resolution, clear diagrams and text (expected for genuine manual)
Binding:
Stapled or perfect bound (typical for owner's manuals)
Paper Quality:
Durable, glossy or semi-gloss paper stock
Type:
2-Stroke, Single Cylinder
Displacement 125:
124.8 cc
Displacement 200:
196 cc (approx.)
Displacement 250:
249 cc (approx.)
Displacement 300:
293 cc (approx.)
Power Delivery Character:
Aggressive, peaky powerband typical of performance 2-strokes
Carburetor Type:
Keihin PWK (common fitment, specific size varies by model)
Fuel Recommendation:
Unleaded gasoline, minimum 91 octane (RON+MON)/95 (RON), specified 2-stroke oil mix
Oil Type:
High-quality 2-stroke synthetic racing oil, KTM recommends specific grades/brands
Frame Type:
Chromium-molybdenum steel central double-cradle frame
Dry Weight 125Sx:
Approx. 96 kg (211.6 lbs)
Dry Weight 300Exc:
Approx. 105 kg (231.5 lbs)
Fuel Tank Capacity:
Approx. 8.5 - 9.5 liters (1.85-2.07 US gal), depending on specific EXC/SX model
Safety Focus:
Designed for off-road use, lacks road-legal safety equipment (lights, mirrors, etc.) unless specifically equipped for dual-sport/enduro homologation.
Brakes:
High-performance hydraulic disc brakes (Brembo components common)
Suspension:
Long-travel, adjustable suspension systems (WP Suspension)
Protection:
Handguards (standard on EXC models), sturdy chassis construction
Spark Plug Check:
Every 10-20 operating hours or as per manual
Air Filter Cleaning:
After every few rides, or more frequently in dusty conditions
Chain Lubrication Adjustment:
Every ride/fuel stop, adjust tension regularly
Oil Change Gearbox:
Every 15-25 operating hours, depending on riding intensity
Gearbox Oil Type:
KTM recommends specific SAE 80W/90 or SAE 75W/90 gear oil (e.g., Motorex Gear Oil 80/90)
Coolant Type:
Mixture of distilled water and anti-corrosion coolant/antifreeze (e.g., Motorex Coolant M3.0)
2 Stroke Tuning:
Sensitivity to jetting changes based on temperature, altitude, and humidity; requires proper carb setup.
Clutch Wear:
Clutch plates can wear faster with aggressive riding; regular inspection and adjustment are key.
Power Valve Maintenance:
Power valve system requires periodic cleaning to ensure proper function.
Specialty:
Exclusively off-road and sport motorcycles, particularly known for motocross and enduro racing
Sx Line:
Motocross focused, stiff suspension, aggressive geometry
Exc Line:
Enduro/Cross Country focused, softer suspension, often street-legal components available (depending on region), larger fuel tanks
Era:
KTM's strong presence in the 2-stroke segment during the 2000s
Brand Reputation:
KTM is consistently recognized for its class-leading performance and durability in off-road racing categories.
Motorcycle Press Reviews:
2006 models generally received high marks for their potent engines, advanced chassis, and competitive pricing within their segments.
