Yamaha F100B F100C Outboards Factory Service Manual, Page 207Get this manual
Power trim and tilt motor (F100C) 7-86 Checking the power trim and tilt motor 7-87 Assembling the power trim and tilt motor 7-87 Bleeding the power trim and tilt unit (F100C)7-88 Not installed7-88 Built-in 7-89 Power trim and tilt electrical system 7-90 Checking the fuse7-91 Checking the power trim and tilt relay .7-91 Checking the power trim and tilt switchtrailer switch 7-91 Checking the trim sensor.7-91