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Old 05-30-2012, 07:10 PM
WorkinOnIt WorkinOnIt is offline
LawnSite Member
Join Date: May 2012
Location: Deltona, Fl.
Posts: 46
Some Echo machines use those newer "rotary-barrel" carbs. They are a different animal to tune than the butterfly valve diaphragm carbs. Most have NO adjusting screws, but some of them can be enriched from their ridiculously lean condition by removing a plastic cap, pulling out a brass sleeve and inside is the magical High speed jet with a slot in it! You open that baby up a little and it starts much easier, accelerates and runs like a bat.
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