Mercury Optimax 75, 90, 115, DFI starting year 2004 service manual., Page 32Get this manual

Mercury Optimax 75, 90, 115, DFI starting year 2004 service manual., Page 32

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MAINTENANCE
CAUTION
Never start or run your outboard (even momentarily) without water circulating through all the cooling water intake holes in the gearcase to prevent damage to the water