How do I adjust the High, Low, and Idle screws in the Stihl 4-mix?


LawnSite Senior Member
spokane, wa
I think I have gotten it down, but need some help fine tuning the adjustments...I was told by stihl that the low screw was for a smooth transition and the high was for the high rpm...they said to adjust until you find a happy medium...the instructional manual on page 23 for the BR600 makes NO sense, since the screw caps are different from the FS110 trimmer...the 110's screws caps turn with the screws and stop with the screws...the BR600's plastic turn caps turn freely...can someone please help me, as I have to go now and eat my lunch of crow...

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