Air Bleed Screw FS-20/40 by O.S.

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O.S.
OSM22081820
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This includes a screw and a spring. The screw is slotted for a flat head screwdriver. Purpose: adjusts the low speed mixture (idle) of the engine. counter clockwise turn will lean out the mixture clockwise turn will richen the mixture NNA-7/8/92

This product was added to our catalog on April 19, 2017