Can so recommend any private home Work the brush cutter. How do I basically always advancing with new "power tools": Spark plug out and a little oil in the cylinder I always use only brand oils, nothing Kaufland or so to retract / shrink by two-strokes always Mineral or semi-synthetic oil, NOT FULLY SYNTHETIC! When retracting the piston adapts to the cylinder, and fully synthetic oil has for this process to good lubricity, after break is welcome Fully synthetic used werden- So, candle out, in oil, with the ignition off some zurchziehen times and only then start. If she runs to run the first 5 to 10 minutes at idle. After the next three to four hours no full throttle and no maximum speed. only then slowly and only briefly rantasten at the maximum speed. So I do that with every new engine, regardless of whether competition machine or cheap China production, and so I also never a croak, or any running today like the first day. The only drawback of the device is the thread spool, because I'm curious how long the join in, but are cheap to buy and if I equip my Verreckt order to Stihl bobbin.