Equipped with STIHL M-Tronic™ electronic engine management, the 50.2 cc (4.0 bhp) STIHL MS 261 C-M automatically calibrates fuel and ignition for instant throttle response at any elevation or temperature—paired with a fast-handling 16-inch guide bar.
Features & Specifications
STIHL M-Tronic™: Microprocessor-controlled fuel dosing and single-position start lever for reliable hot and cold starts
Power-to-Weight: 50.2 cc (4.0 bhp) engine in a nimble 10.8 lb magnesium-crankcase powerhead
Bar & Chain Included: 16 in. STIHL guide bar and .325 in. Rapid Micro 3 (26 RM3) chain
Pro Features: Captive bar nuts, HD2 filter, decompression valve, and adjustable automatic oiler
Cutting System & Bar Selection
Original STIHL Light 04 slim profile guide bars and low-kickback micro semi-chisel chains.
3/8" Standard Conversion AdvisoryOEM Fitment Requirement
The MS 261 comes equipped from the factory with a .325" clutch rim sprocket. Running 3/8" bar & chain requires pairing this matching 3/8"-7T rim sprocket on your clutch drum to ensure correct drive pitch.
Modular 60-Second Install: Slides directly onto your factory clutch drum (no drum or clutch replacement needed).
Files cutters and lowers depth gauges simultaneously in a single stroke. Universal precision sharpening for all .325" pitch chains across 16", 18", and 20" bars.
36" overall length (Standard most popular fit for 5'6"–6'0"). 9-ply heavy duty Engtex Avertic Pro ballistic cut-retardant material. Meets OSHA 1910.266 logging requirements.
California Proposition 65
