2009 Yamaha F40 Outboard Service Manual, Page 161Get this manual
Throttle link rod 3Install the wave washer g, the collar h, and the bolt i g b
4Install the throttle cam assembly j
2Make sure that the protrusion on the throttle lever and the protrusion on the shift bracket are aligned3Set the throttle cam until it slightly contacts the roller f5Adjust the throttle link rod k, and then install it