2007-2009 Yamaha F15/F20 Outboard Service Manual, Page 188Get this manual
Friction plate (tiller handle model)
Disassembling the friction plate
1Remove the friction plate bolts and 2, and then remove the friction plate assembly from the swivel bracket
S6AG7B01
S6AG7A90
NOTE: If the steering lock shaft is not aligned with position b, turn it less than 90 until it is aligned2Assemble the friction plate assemblyNOTE: See the exploded diagram for assembly (75) Face the "TOP" mark on the steering lock lever up Be sure to install the collars in the correct positions; the collar lengths are different