🏷️ Basic Information

Make:

KTM

Model:

450 EXC Six Days

Model Variant:

Six Days

Model Years Covered:

2008, 2009, 2010, 2011

Chassis Codes:

Likely 450 EXC (specific Six Days variant codes may exist but not explicitly stated in product info)

Engine Codes:

Likely LC4-based 450cc engine

👋 Introduction

Segment:

High-performance Enduro/Off-Road Motorcycle

Target Audience:

Enthusiast off-road riders, enduro competitors, and experienced dual-sport riders.

Key Competitors:

Husqvarna TE450, Beta RR450, Yamaha WR450F, Honda CRF450X, Suzuki RM-Z450 (off-road variants).

Performance Focus:

Designed for demanding off-road conditions, trail riding, and competitive enduro events.

Six Days Designation:

The 'Six Days' trim typically signifies a model equipped with special features and enhancements for the International Six Days Enduro (ISDE) event, often including upgraded components.

📋 Manual Details

Systems Covered:

Engine, fuel system, ignition system, cooling system, transmission, clutch, chassis, suspension (front and rear), brakes (front and rear), electrical system, wiring diagrams, bodywork, wheels, tires, troubleshooting, maintenance.

Page Count:

Hundreds (exact count not specified, indicative of a comprehensive manual)

Manual Type:

Factory Service Repair Manual

Language:

English (Assumed, standard for international factory manuals)

Format:

PDF Download

📖 Manual Coverage

Engine Mechanical:

Complete disassembly, inspection, repair, and reassembly of engine components (cylinder, piston, crankshaft, connecting rod, valves, camshafts, etc.).

Fuel System:

Carburetor (likely Keihin FCR) tuning, cleaning, and overhaul; fuel pump (if applicable for EFI variants); fuel tank and lines.

Ignition System:

Ignition coil, spark plug, CDI unit troubleshooting and replacement.

Cooling System:

Radiator, fan, coolant, water pump maintenance and repair.

Transmission And Clutch:

Gearbox inspection, repair, and lubrication; clutch plate replacement, adjustment, and hydraulic system service.

Chassis And Suspension:

Frame inspection and repair; front fork (e.g., WP USD) servicing, including oil changes, seal replacement, and adjustments; rear shock absorber (e.g., WP PDS or linkage-based) servicing and adjustment.

Brakes:

Hydraulic brake system servicing (bleeding, pad replacement, caliper overhaul, master cylinder service) for both front and rear.

Electrical System:

Complete wiring diagrams, component testing (lights, horn, starter, etc.), battery maintenance, and troubleshooting.

Bodywork And Ergonomics:

Fairing, seat, fuel tank, handguards, and other body panel removal, installation, and repair.

Maintenance Procedures:

Routine checks, lubrication points, filter replacements, fluid changes, chain adjustment, and general upkeep.

Troubleshooting Guides:

Systematic diagnostic procedures for common and uncommon problems, fault finding charts.

Overhaul Procedures:

Detailed step-by-step instructions for complete engine, transmission, and suspension unit overhauls.

Diagnostic Procedures:

Methods for identifying component failures and performance issues.

Depth Of Information:

Comprehensive. Covers basic maintenance to complete engine rebuilds and advanced diagnostics, suitable for both home mechanics and professional technicians.

📊 Manual Specifications

File Format:

PDF

Print Quality:

High-resolution, designed for clear printing of text and diagrams.

Binding Type:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

Searchable Text:

Typically yes for factory PDF manuals, enabling quick access to specific information.

⚙️ Engine Specifications

Engine Type:

Four-stroke, Single-cylinder, Liquid-cooled, SOHC

Displacement:

449.3 cc (approx.)

Bore X Stroke:

Likely 95 mm x 63.4 mm (common for this generation LC4 450)

Compression Ratio:

Typically around 11.5:1 to 12.0:1

Horsepower Estimated:

Approximately 50-55 HP (at crankshaft, may vary slightly by year/tune)

Torque Estimated:

Approximately 45-48 Nm (at crankshaft, may vary slightly by year/tune)

Fuel Delivery:

Carburetor (Keihin FCR 39 or similar)

Fuel Type:

Unleaded gasoline, minimum 91 octane

Oil Type:

JASO MA certified motorcycle-specific 4-stroke engine oil, viscosity typically 10W/40 or 15W/50.

Oil Capacity:

Approximately 1.1 - 1.3 Liters (check manual for exact specification, often shared with transmission oil).

🔧 Transmission

Transmission Type:

6-speed constant mesh

Clutch Type:

Wet multi-plate clutch, hydraulically operated

Gear Ratios:

Specific ratios would be detailed in the manual, designed for off-road performance.

Final Drive:

O-ring sealed chain, typically 520 pitch.

📐 Dimensions

Length:

Varies, typically around 2100-2200 mm

Width:

Varies, typically around 800-850 mm (excluding mirrors)

Height:

Varies, typically around 1200-1300 mm (seat height significantly lower)

Seat Height:

Approximately 940-960 mm (unladen)

Dry Weight:

Approximately 110-115 kg (dry)

Wet Weight:

Approximately 120-125 kg (ready to ride, with fluids)

Fuel Capacity:

Approximately 8.5 - 9.5 Liters

Wheelbase:

Approximately 1470-1480 mm

🛡️ Safety Features

Crash Safety Ratings:

N/A (Motorcycles typically do not receive automotive crash test ratings)

Braking System:

Hydraulic disc brakes front and rear (typically Brembo components), designed for strong stopping power in off-road conditions.

Suspension Features:

High-quality, adjustable suspension (e.g., WP USD forks, WP PDS or linkage rear shock) for optimal control and impact absorption.

Lighting System:

Headlight, taillight, brake light, turn signals (may be optional or removed for racing configurations).

Handguards:

Standard on Six Days models for protection against roost, branches, and impacts.

💡 Technology Features

Display System:

Basic LCD display showing speed, odometer, trip meters, and possibly engine hour meter. No advanced infotainment features.

Electronic Aids:

Minimal. Primarily focused on mechanical performance. No traction control or advanced electronic rider aids typically found on modern street bikes.

Connectivity Options:

None. Purely mechanical and electrical systems. No Bluetooth, GPS, or smartphone integration.

🔧 Maintenance

Oil And Filter Change:

Recommended every 15-20 operating hours or annually. Specific intervals vary based on riding conditions.

Air Filter Cleaning:

Recommended every 5-10 operating hours, or more frequently in dusty conditions.

Spark Plug Inspection:

Recommended every 15-20 operating hours.

Valve Clearance Check:

Recommended every 20-30 operating hours or annually. Critical for performance and engine longevity.

Chain Adjustment And Lubrication:

Check and adjust tension every 5-10 operating hours. Lubricate after washing or riding in wet conditions.

Suspension Service:

Fork oil change every 50-100 operating hours; full suspension service annually or as needed based on riding intensity.

Coolant Type:

Ethylene glycol based antifreeze, mixed with distilled water at a 50/50 ratio.

Brake Fluid Type:

DOT 4 hydraulic brake fluid.

Fork Oil Type And Level:

Specific viscosity (e.g., SAE 5W or 7.5W) and level detailed in the manual, crucial for proper suspension function.

Common Wear Items:

Clutch plates, wheel bearings, steering head bearings, chain and sprockets, fork seals, exhaust packing (if applicable).

Potential Reliability Points:

Valve seat wear (can be addressed with harder valve seat materials), carburetors can require periodic cleaning/adjustment, some early models had potential issues with stator or voltage regulators.

📚 Vehicle History

Manufacturer Origin:

Austria

Racing Legacy:

KTM has a strong heritage in off-road racing, including enduro, motocross, and rally raid, which heavily influences its production models.

Exc Lineage:

The EXC line has been KTM's flagship enduro model for decades, continuously evolving with engine technology, chassis design, and suspension.

Engine Development:

The 450 EXC generally utilizes KTM's LC4 engine architecture, which has seen numerous updates and refinements over the years, including improvements in power delivery, reliability, and weight.

Manufacturing Location:

Austria (Primary)

Six Days Context:

The 'Six Days' designation celebrates KTM's success and participation in the International Six Days Enduro, often featuring model-specific graphics and select component upgrades.

🏆 Awards & Recognition

Off Road Performance Awards:

While specific awards for the 2008-2011 model might not be readily cataloged, KTM EXC models consistently receive high praise and wins in various enduro and off-road racing championships worldwide.