1985 Mercury Outboard V-300 V-3.4L Shop Service Manual, Page 271Get this manual
REPOSITIONING THE CONTROL HANDLE Only Necessary If Standard Neutral Position of Handle Is Undesirable STEP 1
CHANGING NEUTRAL POSITION OF REMOTE CONTROL
Neut ral positi on of remole control can be changed by reposi tioning Ihecontrol handle Control handle can be repositioned ever 15 fr om standard neutra position30CaniTOI Handle Can Be Repositioned Every 15 Irom Standard Neu tral Posl tion