1972 4 hp thunderbolt carb idle screw setting amount

section8

Petty Officer 2nd Class
Joined
Jul 27, 2007
Messages
120
just rebuilt the carb on my new 72 4hp troller. the carb is a kb10a. i pulled and cleaned the idle screw and hole but didnt check first to see how many turns it was out first. does anyone know the factory setting for the idle screw? Thanx
 
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