🏷️ Basic Information Identification Make: KTM Model: 990 Super Duke Year: 2003-2005 Engine Code: LC8 Codes Engine Type: V-Twin Engine Configuration: Liquid-cooled, 75-degree V-twin, four-stroke 👋 Introduction Market Position Target Audience: Do-It-Yourself (DIY) mechanics, independent workshops, and KTM owners seeking in-depth repair knowledge. Competitive Analysis Value Proposition: Provides essential, detailed technical information for maintaining and repairing the KTM 950/990 Super Duke, saving time and money compared to dealership service. Key Features Content Quality: Features easy-to-read text sections with high-quality diagrams and instructions. Delivery: Instant Download, No Shipping Cost, No Waiting for CD-ROM. 📋 Manual Details Coverage Areas Covered Models: KTM 950 Super Duke, KTM 990 Super Duke Covered Years: 2003, 2004, 2005 Page Count Page Count: Estimated (as PDF content varies, typically 300-600 pages for this type of manual) Manual Type Manual Type: Service Repair Manual Language Language: English Format File Format: PDF 📖 Manual Coverage Systems Covered Engine: Complete disassembly, assembly, servicing, and troubleshooting of the LC8 engine. Electrical: Wiring diagrams, ignition system, charging system, lighting, and electronic fuel injection (EFI) system. Fuel System: Fuel pump, injectors, fuel lines, and related components. Chassis: Frame, suspension (forks, rear shock), steering, brakes, wheels, and tires. Cooling System: Radiator, coolant lines, water pump, and fan operation. Exhaust System: Mufflers, catalytic converters (if applicable), and exhaust headers. Procedures Included Engine Repair: Detailed steps for removing and refitting the engine, complete engine disassembly and assembly. Component Servicing: Servicing of individual engine components such as pistons, connecting rods, crankshaft, valves, camshafts, oil pump. Troubleshooting: Systematic diagnostic procedures for common and uncommon issues. Maintenance: Scheduled maintenance tasks, fluid changes, filter replacements, adjustments. Electrical Diagnostics: Troubleshooting electrical faults using wiring diagrams and diagnostic procedures. Technical Depth Depth: Comprehensive, covering basic maintenance to full engine rebuilds and advanced diagnostics. 📊 Manual Specifications File Format Compatibility: All versions of Windows & Mac Required Software: Adobe PDF Reader & Winzip Print Quality Printability: All pages are printable. Binding Type Binding Type: Digital (PDF Download) Paper Type Paper Type: Not Applicable (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Family: LC8 Engine Displacement 950: 942 cc (57.5 cu in) Engine Displacement 990: 999 cc (60.9 cu in) Performance Bore X Stroke 950: 98 mm x 62.4 mm (3.86 in x 2.46 in) Bore X Stroke 990: 101 mm x 62.4 mm (3.98 in x 2.46 in) Compression Ratio: Approx. 11.5:1 (varies slightly by model year) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) with Keihin carburetors on early 950 models, transitioning to EFI for later 950 and all 990 models. Ignition Type: Dual spark plugs per cylinder, electronic ignition. Engine Lubrication Oil System: Integrated lubrication system (wet sump or similar design, specific details in manual). 🔧 Transmission Standard Transmission Type: 6-speed constant mesh gearbox. Features Clutch Type: Hydraulically operated, multi-plate wet clutch. 📐 Dimensions Weights Dry Weight 950: Approx. 199 kg (439 lbs) Dry Weight 990: Approx. 183 kg (403 lbs) (Dry weight can vary by specific model and configuration) Fuel Capacity: Approx. 17 liters (4.5 US gal) 🛡️ Safety Features Active Features Braking System: Dual front disc brakes, single rear disc brake. ABS may be optional or standard on certain later models (verify specific year). Suspension Type: Upside-down telescopic forks (front), Monoshock rear suspension (details specific to model). 💡 Technology Features Infotainment Instrument Cluster: Digital/analog combination display with essential readings (speed, RPM, odometer, trip meters, engine temp). Driver Assistance ABS: Optional or standard on some later models within this range (manual will cover its operation and troubleshooting). Connectivity Efi System: Electronic Fuel Injection (EFI) system managed by an ECU, allowing for precise fuel and ignition control. Manual provides diagnostic information. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 5,000-7,500 km (3,000-4,500 miles) or annually, refer to manual for exact intervals. Valve Clearance Check: Typically every 10,000-15,000 km (6,000-9,000 miles), detailed procedure in manual. Fluid Specifications Engine Oil Type: Full synthetic motorcycle oil, typically SAE 10W-50 or 15W-50 (refer to manual for exact specification and API rating). Coolant Type: Ethylene glycol-based coolant, typically 50/50 mix with distilled water. Specific KTM coolant type recommended in manual. Brake Fluid Type: DOT 4 or DOT 5.1 recommended (refer to manual). Clutch Fluid Type: Mineral oil or DOT fluid depending on the specific clutch slave cylinder design (refer to manual). Known Issues Common Wear Items: Clutch slave cylinder leaks, fuel pump issues (especially on early models), suspension seals, wheel bearings. Detailed troubleshooting in manual. Lc8 Engine Characteristics: Known for its torque and performance, requires regular maintenance to ensure longevity. Check for oil leaks and proper cooling system function. 📚 Vehicle History Brand Heritage Manufacturer: KTM AG, an Austrian manufacturer known for its off-road and performance motorcycles. Model Evolution Segment: Naked sportbike/supermoto. Launch Impact: The Super Duke series was positioned as a raw, powerful, and performance-oriented naked bike, a departure from traditional KTM off-road focus....