O.S. Engine #3A / #21 / #2A Adjustable Needle

Description

OSMG7016

22281977 

This is the high speed needle.  It adjusts the mixture of the fuel to          
obtain the highest practical speed of the engine.                              
Includes just the needle ---- NOT the assembly!                                
clockwise turn will lean the engine                                   
counter clockwise turn will richen the engine   

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