Yamaha F100B F100C Outboards Factory Service Manual, Page 18Get this manual
GEN INFO
General information
Bracket unit and the PTT unit
F100B uses the bracket unit of 2-stroke, V4 outboard motor and F100C uses that of F100AIn addition, the PTT unit has been adopted from the F100A as wellThe F100B uses the one found on the proven 2-stroke, V4, and V6 outboard motorsThis PTT unit has been constructed to feature single tilt cylinder and two trim cylindersThe PTT unit of the F100C has been adopted from the proven F100AThis PTT unit consists of single cylinder for both tilt and trim functions, making the unit compact and lightweight