1996-2005 Suzuki DF40, DF50 Four Stroke Outboard Service Manual, Page 234Get this manual
8-5 POWER TRIM AND TILT Pull the tilt rodpiston assembly out of the cylinder bodyRemove the free piston from the cylinder body 2
Remove the PTT motorNote the position of drive joint and O-ring 4, before removing them(see page 8-10) Unscrew the fill plug and drain PTT oil into suitable container