1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 349Get this manual

1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 349

CLEANING and INSPECTION Dirtgum, water or carbon contam inati on in ca rburetor or on exterior mO ' ing parts of carburet
pump plunge from can of gasoline or ke TO en nd slide into pump cy lind erPlac discharge check ball int bodyRaise plunger
and press lightl on shaft to expel air from pump passaJ"fe Hold discharge ball down firml on its scat with mall, clean brass
rodAgain raise plunger nd pres downward0 fue shollid be emilled from ith th intake or discharge pa age 1f any fuel is re
leased from eigher passage presen ce of di rt or dama ged che ck ball are indi catedClean pa acre agai and repeat testIf
lea age still is presentreplace check valveJ(nspe ct upper and lower urfaces of carburetor bod for damaged small ealing beadsDamaged
beadin ma resu lt in loss of ir or fu lkInspect holes in pump rocker armidle cam and thrott le shaft leverIf holes are worn
excessive ly or ollt-of-round and cau improper operation of ca rburetorreplace worn partsI[nspeet idle cam for exee sive