Segment:
Competition Off-Road / Enduro
Target User:
Enthusiasts, amateur racers, mechanics performing service and repair
Competitors:
Yamaha WR450F, Honda CRF450X, Husqvarna TE450, Suzuki RM-Z450 (dual-sport variants)
Vehicle Focus:
Performance-oriented off-road motorcycle designed for XC (Cross Country) racing and trail riding.
Manual Value Proposition:
Essential technical resource for maintaining and repairing the 2009 KTM 450 XC-W, enabling owners and mechanics to perform a wide range of service tasks.
Powertrain:
Engine, Transmission, Clutch, Fuel System, Exhaust System, Cooling System
Chassis:
Frame, Suspension (Front and Rear), Steering, Brakes (Front and Rear), Wheels and Tires
Electrical:
Ignition System, Lighting System, Battery, Charging System, Instrumentation, Wiring Diagrams
Bodywork:
Body panels, Seat, Fuel Tank, Handlebars, Controls
Drivetrain:
Clutch, gearbox, final drive chain and sprockets
Maintenance:
Routine checks, Oil changes, Filter replacements, Lubrication, Chain adjustment, Valve clearance checks
Repair:
Engine disassembly/reassembly, Transmission overhaul, Suspension fork service, Brake caliper rebuild, Electrical component replacement
Diagnostics:
Troubleshooting guides, Fault finding procedures, Symptom-based diagnostics
Specifications:
Torque specifications, Clearances, Fluid capacities, Electrical values
Tune Up:
Carburetor tuning and jetting, ignition timing checks, exhaust system inspection
Depth:
Comprehensive (from basic maintenance to full engine rebuilds and electrical system diagnostics)
Engine Type:
Four-stroke, single-cylinder, SOHC, liquid-cooled
Engine Code Family:
LC4 series (specifically a derivative for off-road use)
Bore X Stroke:
97 mm x 60.8 mm
Compression Ratio:
11.5:1
Horsepower Approximate:
~50-55 HP (at crankshaft, depending on tuning and specific model variant)
Torque Approximate:
~45-50 Nm (at crankshaft, depending on tuning)
Fuel Delivery:
Carburetor (Keihin FCR 41 MX)
Fuel Type:
Unleaded gasoline (min. 91 octane recommended)
Oil Type:
SAE 10W-50, JASO MA certified motorcycle synthetic oil
Oil Capacity:
Approximately 1.1 liters (with filter change)
Type:
Liquid-cooled (radiator with fan)
Coolant Type:
Ethylene glycol-based coolant (50% water / 50% coolant mixture recommended)
Type:
6-speed manual gearbox
Clutch Type:
Hydraulically operated multi-disc wet clutch
Gear Ratios:
Specific ratios documented in manual (e.g., 1st: 2.15, 2nd: 1.75, 3rd: 1.40, 4th: 1.18, 5th: 1.00, 6th: 0.87)
Final Drive:
Chain drive (520 O-ring chain recommended)
Oil Type:
SAE 75W/90, API GL-4 or GL-5 gear oil (same as engine oil for some KTM models, manual to confirm)
Oil Capacity:
Approximately 0.8 liters (refer to manual for exact capacity)
Length:
Approx. 2210 mm (87.0 in)
Width:
Approx. 820 mm (32.3 in)
Height:
Approx. 1260 mm (49.6 in)
Seat Height:
Approx. 960 mm (37.8 in)
Ground Clearance:
Approx. 355 mm (14.0 in)
Dry Weight:
Approx. 110 kg (242.5 lbs)
Fuel Tank Capacity:
Approx. 8.0 liters (2.1 gal)
Wheelbase:
Approx. 1475 mm (58.1 in)
Wheel Size Front:
21 x 1.60
Wheel Size Rear:
18 x 2.15
Tire Size Front:
80/100-21 (typical knobby off-road tire)
Tire Size Rear:
110/100-18 (typical knobby off-road tire)
Type:
N/A (Off-road motorcycle, not subject to automotive safety ratings like NHTSA/Euro NCAP)
Braking System:
Hydraulic disc brakes front and rear (Brembo components common)
Suspension Type:
WP Suspension components (Upside-down telescopic fork front, Monoshock rear with PDS system)
Frame Type:
Chromium-molybdenum steel trellis frame
Handguards:
Standard handguards for rider protection
Oil Change:
Every 15-20 operating hours or annually, whichever comes first (for competition use, more frequent recommended)
Air Filter Cleaning:
After every ride or as needed based on conditions
Valve Clearance Check:
Every 20-25 operating hours or annually
Spark Plug Replacement:
As needed, typically every 30-50 operating hours
Engine Oil Specification:
SAE 10W-50, JASO MA certified synthetic motorcycle oil (e.g., Motorex Power Synt 4T 10W-50)
Coolant Specification:
Ethylene glycol based coolant, 50% water mix (e.g., Motorex Coolant M3.0)
Brake Fluid Specification:
DOT 4 hydraulic brake fluid
Clutch Fluid Specification:
DOT 4 hydraulic clutch fluid
Common Wear Items:
Clutch plates, fork seals, chain and sprockets, wheel bearings, air filter, spark plug.
Potential Concerns:
Carburetor jetting sensitivity to altitude/temperature, potential stator or rectifier issues on some models if not properly maintained, frequent chain and sprocket wear due to off-road use.
