Mercury Mariner 200, 225 Optimax Outboards Service Manual, 90-855348, Page 483Get this manual
Place mark (a) on steering cable mounting tube (b) 58 in(16mm) from end of mounting tubeSlide plastic spacer (c), O-ring (d) and cap (e) over steering cable58" (16mm)
Insert steering cable end (b) thru tilt tube (c) of port outboard and thread steering cable attaching nut (d) onto tilt tube hand tightNOTE: Torque steering cable attaching nuts onlyafter final steering adjustments have been made+c
Thread cap (e) onto steering cable mounting tube, up to mark (a)