🏷️ Basic Information Identification Make: BMW Model: R60/2 Model Variant: Ventileinstellung (Valve Adjustment) Codes Engine Code Designation: M247 👋 Introduction Market Position Target Audience: BMW R60/2 owners and technicians specializing in vintage BMW motorcycles Competitive Analysis Uniqueness: Highly specific technical guide for a critical maintenance task on a classic motorcycle Key Features Importance: Essential for maintaining engine health, performance, and longevity of the R60/2 📋 Manual Details Coverage Areas Primary Focus: Valve Adjustment Procedure Secondary Focus: Related Engine Tuning and Maintenance Page Count Estimated Pages: 10-20 (typical for specialized procedure manuals) Manual Type Type: Service Bulletin / Specialized Technical Guide Language Language: German Format Format: Printed Booklet 📖 Manual Coverage Systems Covered Engine Internals: Cylinder Head, Valves, Valve Springs, Rocker Arms, Pushrods Ignition System: Timing Adjustment Related to Valve Clearance Procedures Included Valve Adjustment Procedure: Step-by-step instructions for setting valve clearances (intake and exhaust) Timing Marks Identification: Locating and interpreting engine timing marks for valve adjustment Tool Requirements: List of specific tools and measuring instruments required Technical Depth Depth: Detailed, precise specifications and procedures for experienced mechanics 📊 Manual Specifications File Format Format Details: Likely original print quality, potentially reproduced for clarity Print Quality Quality: Technical diagrams and text, optimized for readability Binding Type Binding: Stapled or perfect bound booklet Paper Type Paper: Likely standard paper, may vary based on reproduction ⚙️ Engine Specifications Primary Engine Type: Air-cooled, horizontally opposed twin-cylinder (Boxer) Displacement: 594 cc (36.2 cu. in.) Bore: 72 mm (2.83 in.) Stroke: 73 mm (2.87 in.) Compression Ratio: 7.5:1 Performance Horsepower: 28 hp (20.9 kW) @ 5,600 rpm Torque: 38 Nm (28 lb-ft) @ 4,000 rpm Fuel System Carburetion: Dual Bing 64/32/51 and 64/32/52 carburetors Fuel Type: Unleaded gasoline (RON 91 or higher recommended) Lubrication System: Wet sump lubrication Valve Train Configuration: Overhead valves (OHV), pushrod actuated Valve Clearance Intake Cold: 0.15 mm (0.006 in.) Valve Clearance Exhaust Cold: 0.20 mm (0.008 in.) 🔧 Transmission Standard Type: 4-speed manual transmission Drive: Shaft drive to rear wheel Features Clutch: Single dry plate clutch 📐 Dimensions Exterior Length: Approx. 2,160 mm (85.0 in.) Width: Approx. 750 mm (29.5 in.) Weights Dry Weight: Approx. 190 kg (419 lbs) Gross Weight Capacity: Approx. 380 kg (838 lbs) Wheels Tires Front Tire Size: 3.50-18 Rear Tire Size: 4.00-18 🛡️ Safety Features Passive Features Lighting: Halogen headlamp, taillight, turn signals Braking System: Drum brakes front and rear 💡 Technology Features Infotainment Features: N/A (Classic motorcycle, mechanical instrumentation only) Driver Assistance Features: N/A (Classic motorcycle) 🔧 Maintenance Service Intervals Valve Adjustment Interval: Every 5,000 - 10,000 km (3,000 - 6,000 miles) or annually, depending on usage and conditions. Fluid Specifications Engine Oil Type: SAE 20W-50 (classic motorcycle specific, mineral-based recommended) Engine Oil Capacity: 2.5 Liters (2.6 US Quarts) with filter change Gearbox Oil Type: SAE 90 Hypoid gear oil Gearbox Oil Capacity: 0.25 Liters (0.26 US Quarts) Final Drive Oil Type: SAE 90 Hypoid gear oil Final Drive Oil Capacity: 0.15 Liters (0.16 US Quarts) Known Issues Common Problems: Valve seat wear, pushrod guide wear, oil leaks (especially at seals and gaskets), carburetor synchronization issues Impact Of Incorrect Clearance: Reduced performance, increased fuel consumption, potential valve/seat damage if too tight; ticking noise, reduced valve lift if too loose. 📚 Vehicle History Brand Heritage Manufacturer: Bayerische Motoren Werke AG (BMW) Heritage Focus: Motorcycle manufacturing pioneer Model Evolution Model Lineage: Evolution of the BMW 'flat twin' boxer engine motorcycles Production Period: 1960-1969 Production Manufacturing Location: Munich, Germany 🏆 Awards & Recognition Recognitions Model Recognition: Recognized as a robust and reliable touring motorcycle of its era.