2009 Yamaha F40 Outboard Service Manual, Page 325Get this manual
Bracket unit
8Install the ground lead (hydro tilt model)Install the ground leads and (PTT model)9Install the grease nipples u, and then tighten them to the specified torque (remote control model)
Adjusting the trim sensor cam (remote control model with PTT)
1Tilt the outboard motor to the fully down position2Loosen the trim sensor cam screw a3Adjust the trim sensor cam so that the trim sensor setting resistance is within specification