Adjusting Carburetor

Mass. Wine Guy Posted By Mass. Wine Guy, May 27, 2010 at 4:05 PM

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  1. brad068

    brad068
    Feeling the Heat

    Nov 20, 2007
    445
    5
    Loc:
    Central Wisconsin
    I found that a good starting point is to set both high and low screws at 1 turn out. aka. remove plastic caps (red and white usually), turn screws clockwise until they lightly "seat" then back out (counterclockwise) 1 turn. This is usually a good starting point. Also I like to leave them alittle rich for the fact a saw runs different once under load and temp is usually colder outside.

    A saw with alot of use or lower compression will usually need @1.5-2 turn out on the low speed due to the fact the engine can't develop the low pressure or "sucking" force through the carb at low speed as well as a fresh/new saw.
     
  2. smokinj

    smokinj
    Minister of Fire

    Aug 11, 2008
    15,981
    1,412
    Loc:
    Anderson, Indiana
    you really need to learn to tune by sound and you will know what back off meens. If tuning with tack or by turns of the screw your right.
     
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