Mercury Mariner 200, 225 Optimax Outboards Service Manual, 90-855348, Page 497Get this manual
4Install one cable tube jam nut onto steering cable tubePlace tab washer over Ride-Guide yoke, then insert cable tube thru tab washer and yoke Install second cable tube jam nut onto cable tube but do not tighten at this time(Figure 3) 5Position transom attaching kit on transom as aDetermine centerline of outboard, then measure 15 in(38.1 cm) over from this
centerline and draw vertical line on transom(Figure 1) bPosition attaching kit on transom so that transom bracket is centered on the 15 iii(38.1 mm) (Figure 1) at height where the center of Ride-Guide yoke is even with, or not more than 12 in(12.7mm) above top edge of transom(Figure 3)
Figure 3