1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 343Get this manual

1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 343

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'OTE: Ma ke approximat idle ll:l ur adjustment by eUing idle atur screwlean to moderal rough idle, wltich will giue slight va cuum alld speed loss, th en back scre ws out (enrich) !I- tum PUMP ROD ADJ