Stihl MS 151 TC-E 10" Petrol ChainsawMS 151 TC E Petrol Chainsaw: STIHL's lightest top handle chainsaw The lightest top handle saw made by STIHL. This upgraded version of the MS 151 features a new 2 MIX engine that consists of a new cylinder, piston and exhaust. These changes mean there is an increase in power of the saw by up to 1. 05 kW and a 15% increase in torque to 1. 1 Nm all while retaining the lightweight nature of the saw. Fitted with a manual fuel pump and STIHL's ErgoStart (E)