thanks for the video. the versions of recalibration vary Type one: Stihl instructions say put a red sewing thread on your left shoulder, and hop thirty three times on your right foot in a counter clockwise rotation while starting, , , , if the saw doesn't start, put the thread on right shoulder, and hop on left foot in a clockwise rotation . . . or version 3.0 , , , I'm sure everyone gets the idea. Once again, thanks for the video