Overview

The STIHL MS 651 Petrol Chain Saw (90cm/36″, 36RS) is a high-performance, ultra-heavy-duty professional forestry chainsaw built for continuous extreme logging, large-timber felling, bucking, and hardwood processing. Engineered for logging crews and commercial forestry professionals who demand unyielding power in dense standing timber, the MS 651 offers immense engine torque combined with a modern ergonomic design.

Powered by a formidable 91.1 cc 2-stroke engine producing 5.0 kW (6.8 hp), the MS 651 is equipped with a massive 90 cm (36-inch) guide bar and a aggressive 3/8″ 36RS (Rapid Super) full-chisel saw chain for maximum cutting speed through massive trunk diameters. Built for severe operating conditions, it features an advanced anti-vibration system, a long-life HD2 air filtration system that captures microscopic dust particles, a high-output adjustable oil pump for long guide bar lubrication, and the STIHL ElastoStart system paired with a decompression valve for reliable starting.

Key Features & Benefits

• Massive Commercial Power: High-displacement 91.1 cc engine delivers 6.8 hp for effortless felling and cross-cutting of thick hardwoods.

• Extra-Long 36-Inch Guide Bar & 36RS Chain: Premium 90 cm bar paired with full-chisel Rapid Super chain delivers maximum depth capacity and razor-sharp cutting precision.

• HD2 Long-Life Air Filter: Washable PET filter element keeps fine sawdust away from engine components to extend operational lifespan.

• STIHL ElastoStart & Decompression Valve: Absorbs shock loads during pull starting to reduce strain on operator joints and shoulders.

• Controlled-Delivery Oil Pump: Variable-output oiler regulates chain lubrication to match guide bar length and wood density.

• Advanced Anti-Vibration System: Multi-point spring dampeners suppress engine oscillations, preserving physical stamina during long operational shifts.