I do hope that someone can help, I recently purchased a new Stihl Ms 391 chainsaw, I own quite a few saws, but bought this one new as I use it for cutting larger logs, and wanted some thing reliable. My issue is that the oiler is hardly working, I strip and clean the saw removing the bar and chain every time that I use it , I have adjusted the oiler to maximum, but still very little oil is getting to the bar and chain, thanks David.