🏷️ Basic Information Identification Make: BMW Model: K75 Series (K75, K75C, K75S, K75T) Engine Variant: 740cc Inline-Three Cylinder Production Years: 1985-1995 Codes Model Codes: K75, K75C, K75S, K75T 👋 Introduction Market Position Market Segment: Sport Touring / Naked Sport Motorcycle Competitive Analysis Key Competitors: Honda CB-1, Yamaha FZR600, Kawasaki GPX600R, Suzuki GSX-R600 Key Features Platform Strength: BMW's innovative inline-triple engine, shaft drive, solid build quality, and distinctive design Value Proposition Manual Benefit: Empowers owners and independent mechanics to perform all necessary repairs and maintenance, significantly reducing dealership costs and downtime. 📋 Manual Details Coverage Areas Primary Coverage: Service, Repair, Maintenance, Rebuilding, Refurbishing, Restoration Page Count Estimated Page Count: 300+ Manual Type Manual Type: Workshop Service Repair Manual Language Language: English Format Format: Digital Download (PDF) 📖 Manual Coverage Systems Covered Powertrain: Engine disassembly, assembly, troubleshooting, cooling system, lubrication system, fuel system, ignition system, exhaust system Chassis: Frame, front suspension (forks), rear suspension (Monolever swingarm, shock absorber), steering system Brakes: Front and rear brake system service, hydraulic components, disc and caliper maintenance, bleeding procedures Electrical System: Wiring diagrams, lighting, ignition system components, battery, charging system, starter motor, electronic control units (ECUs), instrumentation Fuel And Emission Control: Fuel injection system (Bosch Motronic), fuel pump, injectors, throttle body, emission control systems (if applicable to specific markets) Bodywork And Fittings: Fairings, body panels, seats, fuel tank, storage compartments, instrument cluster, mirrors, controls Procedures Included Maintenance: Oil changes, filter replacements, spark plug service, valve clearance adjustment, chain adjustment (if applicable to specific models/drives), brake fluid changes, coolant replacement Troubleshooting: Diagnostic procedures for common and uncommon issues across all major systems, fault code interpretation (if applicable to early EFI systems) Repair: Detailed step-by-step instructions for component removal, repair, and reinstallation Rebuild Refurbish: Engine top-end and bottom-end rebuild procedures, gearbox overhaul, suspension component refurbishment Technical Depth Depth Of Information: Comprehensive from basic owner-level maintenance to advanced engine-out procedures and electrical system diagnostics 📊 Manual Specifications File Format File Format: PDF (Portable Document Format) Print Quality Print Quality: High-resolution for clear text and images, printable on standard printers Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Inline-three cylinder, four-stroke Displacement: 740 cc (737cc) Bore X Stroke: 70 mm x 64 mm Compression Ratio: 10.0:1 (typical, may vary slightly by sub-model) Valve Train: DOHC, 2 valves per cylinder Cooling System: Liquid-cooled Performance Horsepower: Approx. 75 HP @ 8500 RPM (K75S), ~65 HP (K75 standard) Torque: Approx. 70 Nm @ 6500 RPM Fuel System Fuel Delivery: Bosch Motronic electronic fuel injection Fuel Type: Unleaded gasoline (95 RON recommended) Lubrication System Oil Type And Capacity: SAE 20W-40 or 20W-50, Capacity: Approx. 4.0 liters (with filter change) Ignition System Ignition Type: Electronic ignition (Motronic) 🔧 Transmission Standard Transmission Type: 5-speed manual gearbox Features Drive Type: Shaft drive (BMW's Monolever system) Clutch Type: Dry single-plate clutch, hydraulically operated Fluid Specification Gearbox Oil: SAE 75W-90 API GL-4 or GL-5 gear oil 📐 Dimensions Exterior Length: Approx. 2150-2200 mm (varies by model) Width: Approx. 750-850 mm (including mirrors) Height: Approx. 1150-1250 mm (seat height varies) Weights Dry Weight: Approx. 190-210 kg (varies by model) Gross Vehicle Weight Rating: Approx. 400 kg Cargo Fuel Capacity: 18-21 liters (including reserve), varies by model (e.g., K75T had larger tank) Wheels And Tires Front Tire Size: 110/80-18 Rear Tire Size: 130/90-17 (or 140/80-17 on some variants) Wheel Bolt Pattern: N/A (Cast alloy wheels with specific hub mounting) 🛡️ Safety Features Ratings Safety Standards: Designed to meet relevant European and international motorcycle safety standards of its era. Active Features Braking System: Dual front disc brakes with twin-piston calipers, single rear disc brake with twin-piston caliper. Optional ABS (Anti-lock Braking System) available on some models (e.g., K75S/K75RT derived). Passive Features Frame Construction: Steel diamond frame providing rigidity and rider protection. 💡 Technology Features Infotainment Instrumentation: Analog speedometer, tachometer, fuel gauge, engine temperature gauge, odometer, trip meter, various indicator lights (oil pressure, neutral, turn signals, etc.). Some models may have basic LCD displays for mileage/time. Driver Assistance ABS: Optional ABS system available on certain models, requiring specific maintenance procedures covered in the manual. Connectivity Electrical Management: Bosch Motronic engine management system controlling fuel injection and ignition timing, providing robust performance and efficiency for its era. 🔧 Maintenance Service Intervals Oil Change Interval: Every 5,000 - 10,000 km or annually, whichever comes first (refer to manual for exact specification). Valve Clearance Check: Every 10,000 - 20,000 km, depending on wear and manual recommendations. Spark Plug Replacement: Every 10,000 - 20,000 km, depending on plug type and condition. Brake Fluid Change: Every 2 years, regardless of mileage, due to hygroscopic nature. Fluid Specifications Coolant Type: Ethylene glycol-based coolant (e.g., BMW approved coolant or equivalent) mixed with distilled water (50/50). Brake Fluid Type: DOT 4 brake fluid. Known Issues Common Wear Items:...