I have a stihl fs38 with an autocut C5-2 head on it. It is specified to take 2mm line, but i have seen people using 2.4mm line in it in life and on youtube. Does this damage the clutch (due to being slightly heavier) and would it put undue strain on the head or guard? Also might it invalidate the 2 year warrenty i currently have on the strimmer?
Thanks.
Thanks.