Mercury 35/40HP 2 Cylinder Outboards Service Manual PN 90-42794--1, Page 287Get this manual

Mercury 35/40HP 2 Cylinder Outboards Service Manual PN 90-42794--1, Page 287

Installing the Outboard All Models Determining Recommended Outboard Mounting HeightAll Models

d This line may be preferred to determine outboard mounting height dimension for dual outboard installatione Outboard mounting height (height of outboard transom brackets from bottom of boat transom)23 '