1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 349Get this manual
Opposite Side Routed Steering Cables and Attaching Kit Installation (ONE CABLE ROUTED DOWN STARBOARD SIDE OF BOAT AND ONE CABLE ROUTED DOWN PORT SIDE OF BOAT) IMPORTANT: Steering cable must be installed into tilt tube of "port" engine before engine is mounted
Figure 1Tube Mounting Bracket Installed
Super Ride-Guide Steering Kit Installation
Install Super Ride-Guide Steering Kit in accordance with instructions included with Super Ride-Guide Kita -
Installing Steering Cables and Steering Link Rods to Engines