Yamaha Outboard Motors Factory Service Manual F6 and F8, Page 100Get this manual
CONTROL SYSTEM ADJUSTING THE SHIFT CONTROL CABLE (F8CW)
1Check: Shift control cable Damage ReplaceIncorrect shift handle positionpoor shifting Adjust
2Adjust: Shift control cable Adjusting steps: (1)Set the shift handle to the neutral position (2)Loosen the locknut and remove the clip and the cable end from the shift control cable 4(3)Set the remote control lever to the neutral position(4)Turn the cable end so it aligns with the pin on the shift handle 1Then, reinstall the cable end onto the shift handle 1
WARNING