1988-1992 Mercury Force 5HP Outboards Service Manual, Page 111Get this manual
VREPLACING STOP SWITCH (1988A) 1Remove engine coverSEE FUEL TANK AND COMPONENTS SECTION FOR MORE INFORMATIONRemove stop switch Disconnect two wire leads (A)Unscrew nut (8)
Pull stop switch forward and outInstall new stop switch Position stop switchInstall nut (8) Connect two wire leads (A)