🏷️ Basic Information Identification Make: KTM Model: LC4 Model Variant: 500-600 Year: 1988 Product Type: Parts Manual 👋 Introduction Market Position Utility: Essential reference for owners and mechanics to maintain and repair the KTM LC4 500-600 series motorcycles from 1988, offering significant cost savings on parts. Key Features Value Proposition: Empowers users with the exact part numbers and technical drawings used by professional garages, ensuring correct part acquisition and efficient repairs. Competitive Analysis Advantage: Provides detailed, factory-level information that may be difficult to find through generic online parts retailers, ensuring accuracy for a specific, older model. 📋 Manual Details Coverage Areas Overall Coverage: Front to back of the motorcycle, all necessary part numbers and drawings for all repairs. Specific Systems Mentioned: Air Cleaner, Air Suction Valve, Alternator, Alternator Cover, Battery, Cable Switch, Cam Chain Tensioner, Camshaft Valve, Carburetor Assy, Carburetor Components, Caution Label, Clutch, Crankcase, Crankshaft Piston Rings, Cylinder Head, Cylinder Head Cover, Evap Canister, Frame, Front Brake Caliper, Front Brake Master Cylinder. Frame Components: Includes all parts related to the motorcycle's frame structure. Suspension Components: While not explicitly listed in the provided snippet, a comprehensive parts manual would typically include suspension components (forks, rear shock, linkages). Wheel And Tire Components: Similarly, typically includes hubs, spokes, rims, and related parts. Page Count Estimated Page Count: Not specified, but implied to be comprehensive for parts and diagrams. Manual Type Type: Parts Manual Language Language: Likely English, based on product description. Format Format: Physical printed manual (implied by 'will be send to you' and use by garages). 📖 Manual Coverage Systems Covered Engine Internals: Crankshaft Piston Rings, Camshaft Valve, Cam Chain Tensioner, Carburetor Assy, Carburetor Components. Engine Externals: Alternator, Alternator Cover, Cylinder Head, Cylinder Head Cover, Crankcase, Air Cleaner. Fuel System: Carburetor Assembly, Carburetor Components, Evap Canister. Electrical System: Alternator, Battery, Cable Switch. Braking System: Front Brake Caliper, Front Brake Master Cylinder. Chassis And Frame: Frame. Procedures Included Parts Identification: Identification of all necessary part numbers and corresponding drawings for ordering. Repair Guidance: Provides information needed for all repairs, enabling owners to get their bike running in 100% condition. Parts Ordering: Facilitates accurate parts ordering, mirroring the process used by professional workshops. Assembly Disassembly: Detailed parts diagrams facilitate accurate reassembly after component replacement. Technical Depth Depth: Includes illustrations, diagrams, technical specifications, and depth illustrations. Target User: DIY mechanics and professional workshops for parts identification and ordering. 📊 Manual Specifications File Format Format: Physical Print Print Quality Quality: Professional quality suitable for workshop use, with clear diagrams and specifications. Binding Type Binding: Likely bound for durability in workshop environments (e.g., spiral-bound or perfect-bound). Paper Type Paper: Durable paper stock suitable for workshop use, resistant to grease and dirt. ⚙️ Engine Specifications Primary Engine Engine Type: LC4 (Liquid Cooled 4-stroke) Single Cylinder. Displacement Variants: Covers 500cc and 600cc variants. Performance Horsepower Range: Estimated 40-50 hp (typical for this era and displacement). Torque Range: Estimated 35-45 Nm (typical for this era and displacement). Fuel System Carburetor Type: Likely Mikuni VM or similar. Carburetor Diameters: Specific diameters for 500cc and 600cc models would be detailed in the manual (e.g., 36mm, 40mm). Ignition System Ignition Type: CDI (Capacitor Discharge Ignition). Lubrication Oil System: Likely a semi-dry sump system with an oil cooler integrated into the engine design or frame. Cooling System Cooling Method: Liquid-cooled (indicated by LC4). Engine Internals Valve Train: Overhead Camshaft (OHC) with 4 valves per cylinder (typical for LC4, though exact spec for '88 might be 2 valves). The manual will confirm. 🔧 Transmission Standard Type: 5-speed or 6-speed sequential gearbox. Clutch Clutch Type: Wet multi-plate clutch, operated by cable. Features Gear Ratios: Specific gear ratios for each gear would be detailed in the manual. Fluid Specifications Transmission Oil: Likely SAE 10W/40 or 20W/50 motorcycle specific engine oil, as it shares oil with the engine. 📐 Dimensions Weights Dry Weight: Approximately 140-155 kg (varies by specific model/trim). Wet Weight: Approximately 155-170 kg (with fluids). 🛡️ Safety Features Active Features Braking System: Hydraulic disc brakes front and rear. Front: Single disc with twin-piston caliper. Rear: Single disc with single-piston caliper. Passive Features Frame Construction: Chromium-molybdenum steel trellis frame for rigidity and impact resistance. Lighting Headlight: Halogen headlight for visibility. 💡 Technology Features Infotainment Features: Basic instrumentation: speedometer, tachometer, odometer, neutral indicator, oil pressure warning light. Driver Assistance Features: None in the modern sense; focus is on mechanical reliability and rider control. Connectivity Features: No electronic connectivity features. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 3,000-5,000 km or annually, depending on usage and oil quality. Manual will specify exact interval. Air Filter Cleaning: Inspect and clean every 1,000-2,000 km, replace as needed. Manual will detail inspection procedure. Spark Plug Replacement: Typically every 6,000-10,000 km. Manual will specify correct plug type and gap. Fluid Specifications Coolant Type: Ethylene glycol-based coolant with anti-corrosion additives. Manual will...