🏷️ Basic Information Identification Make: Stihl Model: 064, 066 Year: Not Specified (Covers multiple model years) Generation: N/A (Specific to model series) 📋 Manual Details General Manual Type: Workshop Service Repair Manual Language: English Page Count: Not Specified (Downloadable PDF) Format: PDF Download Content Scope: Comprehensive repair, maintenance, troubleshooting, and parts ⚙️ Engine Specifications Engine Type Engine Type: 2-stroke gasoline engine Displacement Displacement: 70.7 cc (064), 75.5 cc (066) Power Power Output: Variable, dependent on model and specific configuration (e.g., 4.8 kW for 066) Fuel System Carburetor Type: Diaphragm type, adjustable Ignition Ignition System: Electronic CDI 🔧 Transmission Drive Drive System: Clutch engaged, direct drive to chain Clutch Clutch Type: Centrifugal clutch 📐 Dimensions Overall Weight Without Bar And Chain: Approx. 7.3 kg (064), Approx. 7.5 kg (066) 🔧 Maintenance Routine Fuel Oil Mixture Ratio: 1:50 (Stihl HP Ultra 2-stroke oil to gasoline) Spark Plug Type: NGK BPMR7A or equivalent Chain Tensioning: Adjustable via side-mounted tensioner Air Filter Cleaning: Regular inspection and cleaning 📄 Parts And Service Parts Availability Part Identification: Detailed diagrams and part numbers included Service Procedures Disassembly Reassembly: Step-by-step instructions Troubleshooting Common Issues: Diagnosis and solutions for common problems