Because the 084 is an older model, the official "084 AV Service Manual" may be hard to find in physical print, but it is often available in PDF format.
Anti-vibration (AV) mounting system for operator comfort. stihl 084 av service manual
| Component | Specification | | :--- | :--- | | | 121.6 cc (7.4 cu in) | | Cylinder Bore | 54 mm | | Piston Stroke | 54 mm | | Spark Plug | Bosch WSR 6 F or NGK BPMR 7A | | Electrode Gap | 0.5 mm (0.020 in) | | Fuel Mix | 50:1 (2% high quality 2-stroke oil) | | Idle Speed | 2,500 RPM | | Max Speed | 9,500 RPM (do not exceed 10,000) | | Chain Pitch | .404" or 3/8" (manual covers both sprockets) | Because the 084 is an older model, the
can be difficult. Proper maintenance, however, is crucial to keeping this 121cc beast running efficiently. This article acts as a comprehensive guide, highlighting the crucial information typically found within the official repair literature and the Stihl 084 Parts Breakdown Guide . Why You Need a STIHL 084 AV Service Manual Proper maintenance, however, is crucial to keeping this
Rebuild instructions (diaphragm and needle replacement).
Turn the High-speed mixture screw () out counter-clockwise 1 full turn from gently seated. Fine Tuning: Warm the engine up for 3 minutes.
Before diving into repairs, it is essential to understand the core metrics of your machine. The service manual outlines these definitive factory specifications: Engine & Performance 121.6 cc (7.42 cu. inches) Cylinder Bore: 60 mm (2.36 inches) Piston Stroke: 43 mm (1.69 inches) Engine Power: 6.4 kW (8.6 bhp) at 9,500 RPM Idle Speed: 2,000 RPM Maximum Permissible Speed (with bar and chain): 11,500 RPM Fuel & Lubrication Systems Fuel Capacity: 1.25 liters (2.64 US pints)