The MS 261 C-M is a rugged all-rounder equipped with STIHL's environmentally friendly 2-MIX engine technology for less fuel consumption and less emission and outstanding cutting performance. In addition the MS 261 features the HD2 air filter for long filter life. The new MS 261 C-M is now fitted with STIHL's M-TRONIC electronic engine management system which enables the saw to automatically adjust to varying fuel grades, changes in altitude and temperature and makes starting this saw easier than ever before, simply push the start lever to the on position and pull. The new MS 261 C-M has taken performance to a new level.