Yamaha F100B F100C Outboards Factory Service Manual, Page 295Get this manual
Power trim and tilt motor (F100C)Bleeding the power trim and tilt unit (F100C) 3Install the armature 7, O-ring 8, and yoke 9NOTE: The fluid level should be at the brim of the filler hole4If necessary, add sufficient fluid of the recommended type to the correct levelRecommended power trim and tilt fluid: ATF Dexron II 5Install the reservoir cap6Connect the PTT motor leads to the battery terminals
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Bleeding the power trim and tilt unit (F100C)