1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 364Get this manual

1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 364

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Idle Fuel Adjusting Needle
3tart engine and allow operating temperature to reach
normal4 After engine rea ches normal operating temperatureadjust idl speed screw to idle engine at spe ifie