🏷️ Basic Information Identification Make: Stihl Models: SR 320, SR 400, BR 340, BR 420, SR 340, SR 420, SR 430, SR 450 Year: Not Specified (Manual covers multiple models, implying a range of production years) Generation: Not Applicable (Manual covers specific models, not generational updates) 📋 Manual Details Documentation Manual Type: Workshop Service Repair Manual & Parts Language: English Page Count: Not Specified (Digital download, content depth is key) Format: PDF Download Info Download Type: Instant Download Compatibility Operating Systems: All Versions of Windows & Mac Requirements Software Required: Adobe PDF Reader ⚙️ Engine Specifications General Engine Type: 2-stroke (Typical for Stihl handheld equipment, detailed in manual) Engine Details Covered: Engine overhaul, components, and systems Performance Displacement: Not Specified (Varies by specific model, detailed in manual) Power Output: Not Specified (Varies by specific model, detailed in manual) 🔧 Transmission Drive System Type: Clutch, Chain Drive (for models with chains) Gears: Not Applicable (Direct drive or centrifugal clutch, not geared transmission) 🔧 Maintenance Service Intervals Service Recommendations: Detailed in manual for various components Fluid Capacities Fuel Mixture: Specific ratio detailed in manual (e.g., gasoline to 2-stroke oil) Chain Lubrication Oil Type: Specific type recommended in manual 📄 Repair Procedures Engine Engine Repair: Comprehensive instructions provided Ignition Ignition System Service: Includes troubleshooting and repair of ignition system Fuel System Fuel System Maintenance: Carburetor adjustments, fuel filter replacement, etc. Control System Master Control Service: Instructions for servicing the master control and handle system 📄 Special Tools Aids Servicing Tools: List and description of special servicing tools and aids 📄 Diagrams Illustrations Quality: High quality diagrams 📄 Parts Identification Parts Included: Parts breakdown and information included