1986+ Mercury 6/8/9.9/10/15HP 2-stroke Factory Service Manual, Page 51Get this manual
OUTBOARD INSTALLATION
7Check shift cable adjustment as follows: aShift remote control into forward gearThe propeller should not be able to rotate in counterclockwise directionIf propeller does rotate counterclockwise, adjust barrel closer to end of cable and recheckbShift remote control into neutralPropeller should turn freely without dragIf not, adjust barrel away from end of cable and repeat steps and bcWhile rotating propeller shaft, shift remote control into reverse gearIf propeller can be rotated, adjust barrel away from end of cable and repeat steps through cdShift remote control into neutralPropeller should turn freely without dragIf not, adjust barrel closer to end of cable and repeat steps through dTHROTTLE CABLE INSTALLATION
NOTE: For easier installation of throttle cable into control cable grommet, apply soap and water solution to top and inside of grommet1Install throttle cable into control cable grommet2Move remote control handle forward to wide open throttle position3Slide barrel of throttle cable into barrel recess of control cable anchor bracketPlace end of cable on throttle lever pin4With remote control in the wide open throttle position, 1.6 mm (116 in gap must exist between guide of anchor bracket and control cable endAdjust throttle barrel as required5Secure throttle cable end to throttle lever pin with retainer