1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 335Get this manual

1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 335

ADJUSTMENTS for MODEL nBC" CARBURETOR INL ET FU EL ILTER REMOVE and REPLACE arne as "Iodel "B" carburetorpr,:ceciin IDLE
Di sconnec fu lin at ca rbur tor fu fill inlet 1093Tigh ten cove sc rews CHOKE ROD SETTING a dj ustment is ce pt mak idle
sc rew contac ts cam when choke valve is ly open or lased2If sc rew drop off cam in ei th er choke valv bend choke rod to
position cam correc tl y( sure th ompleteposit ionigure 13) UNLOAD ER ADJUSTM ENT 1Place throttle in wide open IL ion 'sing
ool J-9580, checthat small step of gauge .230 .270 lid between lower edge of choke val ve or bore of carbur orFigure 14)
4 8- 10FU EL SYSTE MS F igure 14Ch ecking Unlooder Page: 335 Mercruiser Service Manual 1963-1973 all Engines and driveswww.ReadManm