The STIHL MS 500i Fuel Injected Gas Chainsaw is a professional-grade cutting tool engineered for exceptional power, rapid acceleration, and consistent performance in demanding forestry and tree care applications. As the world’s first chainsaw equipped with electronically controlled fuel injection, it automatically adjusts the fuel-to-air mixture based on operating conditions, delivering optimal engine performance without the need for manual carburetor adjustments.

Powered by a high-performance 79.2cc two-stroke engine, the MS 500i offers an outstanding power-to-weight ratio, making it ideal for felling large trees, bucking heavy logs, and handling intensive cutting tasks. The lightweight magnesium construction helps reduce operator fatigue while maintaining exceptional durability in rugged working environments.

The chainsaw features a high-output engine that accelerates quickly for fast, efficient cutting through hardwoods and dense timber. Its advanced anti-vibration system minimizes vibration transferred to the handles, improving comfort and control during extended periods of use. An inertia-activated chain brake enhances operator safety by stopping the chain in the event of kickback.

Designed for professional users, the side-access chain tensioner allows quick chain adjustments, while the captive bar nuts help prevent lost hardware during maintenance. The translucent fuel and oil tanks make it easy to monitor fluid levels, reducing downtime in the field. The adjustable automatic oiler provides consistent chain lubrication, helping extend the life of the guide bar and chain under various cutting conditions.

Specifications

Brand: STIHL
Model: MS 500i
Power Source: Gas Powered
Engine Type: 2-Stroke Fuel-Injected Engine
Engine Displacement: 79.2 cc
Fuel System: Electronic Fuel Injection
Power Output: 6.7 HP (5.0 kW)
Recommended Guide Bar Length: 20 to 36 inches
Chain Pitch: 3/8 inch
Chain Gauge: .050 inch
Automatic Chain Oiler: Yes
Adjustable Oil Flow: Yes
Chain Tensioner: Side Access
Chain Brake: Inertia-Activated
Anti-Vibration System: Yes
Decompression Valve: Yes
Captive Bar Nuts: Yes
Fuel Tank Capacity: 26.5 oz (785 mL)
Chain Oil Capacity: 11.8 oz (350 mL)
Dry Weight (Without Bar and Chain): 13.9 lb (6.3 kg)
Application: Professional Forestry, Tree Felling, Logging, Storm Cleanup, and Heavy-Duty Wood Cutting
Includes: Powerhead (Guide Bar and Chain may vary depending on package configuration)