Model Variants:
K75, K75C, K75S, K75RT (implied by year range and general K75 service)
Production Years Covered By Manual:
1983-1992
Internal Model Codes:
K75 (typical BMW nomenclature for this series)
Target Audience:
DIY motorcycle enthusiasts, independent repair shops, BMW motorcycle owners
Manual Value Proposition:
Comprehensive, detailed, and readily accessible digital format for immediate use, saving on shipping and wait times.
Ease Of Use:
Designed for ease of reading with simple explanations, even for less experienced personnel.
Completeness Assurance:
Stated as 100% complete and intact, without missing or corrupt pages/sections.
Focus On Safety:
Emphasizes the importance of safety precautions, special tool usage, and proper procedures.
Primary Coverage:
Repair and maintenance for BMW K75 series motorcycles
Secondary Coverage:
Troubleshooting, diagnostics, component disassembly and reassembly, specifications
Type:
Workshop Service Manual / Repair Manual
Engine:
Complete engine overhaul, lubrication, cooling system, fuel system (injection), exhaust system, ignition system
Transmission:
Clutch, gearbox, final drive (shaft drive)
Chassis:
Frame, suspension (front fork, rear shock absorber), steering
Brakes:
Front and rear brake systems (hydraulic, disc brakes), brake fluid
Electrical:
Battery, charging system (alternator, voltage regulator), starting system, lighting, instrumentation, ignition system (detailed)
Bodywork And Fittings:
Body panels, seat, fairings (if applicable to specific models), fuel tank, controls
Maintenance:
Scheduled maintenance, oil changes, filter replacements, spark plug service, fluid checks and changes, lubrication points
Troubleshooting:
Diagnostic charts, common problems and solutions, symptom-based troubleshooting
Repair Overhaul:
Detailed step-by-step procedures for disassembly, inspection, repair, and reassembly of all major components
Adjustments:
Valve clearance adjustment, throttle cable adjustment, clutch lever adjustment, idle speed adjustment, brake lever adjustment
Installation Removal:
Removal and installation procedures for all components and sub-assemblies
Depth:
Comprehensive. Covers basic maintenance to full engine and gearbox rebuilds. Includes detailed specifications and diagnostic procedures.
Special Tools:
References specific BMW special tools required for various repair operations, often with illustrations of tool usage.
Torque Specifications:
Provides detailed torque values for all critical fasteners, essential for proper assembly and safety.
Diagrams Illustrations:
Includes exploded diagrams, sectional views, and pictorial illustrations to guide repair procedures.
Accessibility:
Instant Download
Printability:
Yes, all pages are printable
Resolution:
Implied high resolution for clear viewing and printing of text and diagrams.
Binding:
Digital (PDF) - not applicable for physical binding
Paper Quality:
Digital (PDF) - not applicable for paper type
Required Software:
Adobe Reader
Operating Systems:
Windows, Mac, Linux OS
Engine Type:
Inline 3-cylinder, 4-stroke
Displacement:
740 cc (approximately)
Bore X Stroke:
70 mm x 64 mm (typical for K75)
Valve Train:
DOHC (Double Overhead Camshaft), 2 valves per cylinder
Horsepower:
Approximately 75 hp @ 7500 rpm (depending on model variant, e.g., K75S)
Torque:
Approximately 75 Nm (55 lb-ft) @ 5500 rpm (depending on model variant)
Fuel Delivery:
Bosch LE-Jetronic fuel injection
Fuel Type:
Unleaded gasoline (RON 91 or higher)
Cooling Method:
Liquid-cooled
Oil Capacity:
Approximately 3.0 liters (with filter change)
Recommended Oil Grade:
API SG or higher, SAE 20W-40 or 20W-50 (refer to manual for exact BMW recommendations)
Transmission Type:
5-speed manual gearbox
Transmission Variants:
Not typically offered with automatic transmissions for this model range.
Clutch Type:
Dry single-plate clutch (K75), Wet multi-plate clutch (some later models or variants, though K75 primarily dry)
Transmission Oil:
Refer to manual for specific type and capacity (typically gear oil for final drive, engine oil for gearbox lubricant on some BMWs).
Crash Test Data:
Motorcycle safety ratings are not directly comparable to automobiles; focus is on handling, braking, and rider protection through design.
Braking System:
Dual front disc brakes, single rear disc brake (typically with ABS available on later K75RT or optional on K75S).
Suspension:
Telescopic front fork, Monolever or Paralever rear swingarm with single shock absorber (depending on specific K75 variant).
Lighting:
Headlight, taillight, brake lights, turn signals
Instrumentation:
Analog speedometer, tachometer, fuel gauge, engine temperature gauge, indicator lights, clock.
ABS Availability:
Anti-lock Braking System (ABS) was an optional feature on some models, notably the K75RT and later K75S variants.
Connectivity Features:
No modern electronic connectivity features like Bluetooth or smartphone integration.
Oil Change Interval:
Typically every 5,000 - 10,000 km or annually, whichever comes first (refer to specific manual recommendation).
Valve Clearance Check:
Typically every 10,000 - 20,000 km (refer to specific manual recommendation).
Major Service Interval:
Around 20,000 - 30,000 km, involving more comprehensive checks and adjustments.
Engine Oil Type Recommendation:
API SG or higher, SAE 20W-40 or 20W-50 (consult manual for precise BMW approval).
Brake Fluid Type:
DOT 3 or DOT 4 (refer to manual for specific recommendation).
Coolant Type:
Ethylene glycol-based antifreeze mixed with distilled water (50/50 ratio).
Common Wear Items:
Fuel pump, starter motor, clutch components, brake pads, suspension seals, fuel injector seals.
Electrical Gremlins:
Like many motorcycles of this era, can be susceptible to aging wiring and connectors, particularly around the ignition and fuel injection systems.
Fuel Injection System:
Periodic checks and cleaning of injectors and sensors might be required for optimal performance.
Bmw Motorcycle Legacy:
BMW has a long-standing reputation for engineering quality, durability, and innovative motorcycle technology.
K Series Introduction:
The K-series was BMW's venture into inline-engine motorcycles, offering a different approach to their traditional boxer twins.
K75 Positioning:
The K75 was designed as a smoother, more refined alternative to the K100, offering a balance of performance and touring capability.
Manufacturing Location:
Berlin, Germany
Production Span Of K75 Series:
Early 1980s to early 1990s
