2009 Yamaha F40 Outboard Service Manual, Page 202Get this manual
Wiring harness
Removing the wiring harness
1Remove the clamps and the ground lead b
5Remove the ground leads g
6Remove the caps h, and then remove the PTT relay leads (PTT model)7Disconnect the PTT relay coupler m, and then remove the PTT relay (PTT model)2Disconnect the oil pressure switch connector and the thermo sensor coupler d, and then remove the Rectifier Regulator coupler from the bracket a3Remove the wiring harness from the clamp b