The STIHL 4 MIX engine is the first four stroke engine which works on a mixture of petrol and oil. It combines the advantages of four stroke and two stroke engines in one. With higher torque and up to 80% less emissions and a deeper more pleasant sound. Easy to start due to the decompression system and manual fuel pump. Supplied fitted with AutoCut and Metal blade cutting heads.For professional users with high demands.Standard features36.3cc 1.9hp engineSTIHL 4 MIX engine Anti vibration system Bike handle Shoulder strap carrying system Multi function control handle Decompression system Tool free handle adjustment