🏷️ Basic Information Identification Make: BMW Model: R25 Model Variant: R25/2, R25/3 Codes Product Code Identifier: INSTAndSETZUNGS ANLEITUNG 👋 Introduction Market Position Market Position: Essential documentation for owners and independent workshops of classic BMW motorcycles, enabling self-sufficiency in maintenance and repair. Competitive Analysis Competitive Analysis: This manual provides the same level of detail as used by official BMW workshops, offering a significant cost-saving advantage over professional servicing for many common tasks. Key Features Key Features: Illustrations, diagrams, technical specifications, depth illustrations, step-by-step explanations, enabling understanding for users with basic mechanical knowledge. Target Audience Target Audience: BMW R25/2 and R25/3 owners, mechanics, and enthusiasts looking for in-depth repair and maintenance information. 📋 Manual Details Coverage Areas Vehicle Systems Covered: Full vehicle repair, engine, transmission, wheels, chassis, electrical systems, bodywork Electrical System Coverage: Likely covers basic electrical systems such as lighting, ignition, and charging circuits, typical for the era. Chassis And Frame: Covers inspection, repair, and maintenance of the motorcycle's frame and associated chassis components. Bodywork And Fittings: Includes procedures related to the motorcycle's body panels, fuel tank, seat, and other fittings. Page Count Page Count: 99 Manual Type Manual Type: Repair Manual / Workshop Manual / Service Manual Language Language: German Format Format: Printed Copy of Original Factory Manual 📖 Manual Coverage Systems Covered Engine Systems: Engine disassembly, assembly, technical specifications, tolerances, measurements Transmission Systems: Gearbox removal and installation Wheel And Tire Systems: Wheel removal and installation Procedures Included General Repair Procedures: Step-by-step explanations for various repairs, front to back of the vehicle Diagnostic Procedures: Troubleshooting and identifying issues to restore 100% condition Engine Rebuilding: Detailed, step-by-step guidance for the complete disassembly and rebuilding of the engine. Wheel Mounting And Dismounting: Specific instructions for the safe and correct removal and installation of wheels. Technical Depth Technical Depth Level: Comprehensive technical information for repairs and maintenance, suitable for workshops and knowledgeable DIYers Troubleshooting Guides: Incorporates troubleshooting sections to help diagnose and resolve common mechanical and operational problems. Technical Areas Technical Data Section: Comprehensive technical data, including specifications, measurements, and tolerances. Illustrations And Diagrams: Richly illustrated with diagrams and detailed drawings to aid comprehension of complex procedures. 📊 Manual Specifications File Format File Format: Not applicable (printed copy) Print Quality Print Quality: Copy of Original Factory Manual (quality may vary based on source copy) Illustration Clarity: Original factory manual illustrations are generally clear and detailed, aiding in the understanding of assembly and disassembly. Binding Type Binding Type: Likely stapled or saddle-stitched for original factory manuals of this era Paper Type Paper Type: Likely standard paper, potentially with some coated pages for illustrations ⚙️ Engine Specifications Primary Engine Engine Type: Two-cylinder boxer engine Engine Displacement: 247 cc (for R25/2 and R25/3) Performance Horsepower Output: Approx. 12-15 HP (depending on specific variant and tuning) Torque Output: Specific torque figures for engine components will be detailed in the manual, crucial for proper assembly. Fuel System Fuel System Type: Carburetor (likely Bing) Carburetor Model Identification: The manual will likely identify the specific carburetor model and provide tuning and adjustment procedures. Engine Maintenance Engine Disassembly Procedures: Detailed step-by-step guide for complete engine breakdown and reassembly. Engine Tolerances And Measurements: Specific clearance values, torque settings, and critical dimensions for engine components. 🔧 Transmission Standard Transmission Type: 4-speed manual gearbox Optional Optional Transmission Features: Not typically applicable for this era and model, but the manual would detail internal components and potential modifications. Features Gearbox Removal And Installation: Comprehensive instructions for removing and refitting the transmission unit. 📐 Dimensions Exterior Wheelbase: Approx. 1400 mm (typical for the era, specific figures in manual) Weights Dry Weight: Approx. 150-160 kg (depending on specific R25 variant) 🛡️ Safety Features Ratings Safety Ratings Era: Safety standards and considerations applicable to mid-20th century motorcycles; emphasis on rider skill and proper maintenance. Active Features Active Safety Features: Drum brakes (front and rear), telescopic front fork, Earles fork rear suspension (R25/3) Passive Features Passive Safety Features: Robust frame construction, rider positioning designed for stability. 💡 Technology Features Infotainment Infotainment Features: Not applicable for this era of motorcycle. Driver Assistance Driver Assistance Systems: Not applicable for this era of motorcycle; focus is on mechanical systems. Connectivity Connectivity Features: Not applicable for this era of motorcycle. 🔧 Maintenance Service Intervals Typical Service Intervals: Detailed in manual: engine oil changes, valve adjustments, ignition timing checks, brake inspections, lubrication points. Fluid Specifications Engine Oil Type: Specific viscosity grades and API classifications for the era (e.g., SAE 30, SAE 40, or multi-grade; manual will specify) Gearbox Oil Type: Specific gear oil specification (e.g., EP 80 or similar; manual will specify) Brake Fluid Type: TypicallyDOT 3 or DOT 4 for drum brakes of this era if hydraulic actuation is present on later models, or specific grease for mechanical systems. Known Issues Common Issues R25 Series: Mentioned or addressed in manual: electrical system reliability, carburetor...