Mercury Mariner Outboards 2.2 / 2.5 / 3.0 Service Shop Manual, Page 15Get this manual

Mercury Mariner Outboards 2.2 / 2.5 / 3.0 Service Shop Manual, Page 15

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IMPORTANT: When storing outboard for the winter, be sure that all water drain holes in gear housing are open and free so that all water will drain outTrapped water may freeze and expand, thus cracking