2007-2009 Yamaha F15/F20 Outboard Service Manual, Page 152Get this manual
Cylinder block NOTE: When installing the throttle cam to the bracket D, be sure to hook the end of the spring onto the projection of the bracket as shownNOTE: To adjust the throttle cable(s), see "Adjusting the throttle cable (tiller handle model)" (3-8) or "Adjusting the throttle cable (remote control model)" (3-9) Install the steering bracket cover after adjusting the throttle cables(Tiller handle model) 8Install the bracket and warning indicator assembly F Bolt C: Nm (0.8 kgfm, 5.9 ftlb)
6Turn the throttle cam counterclockwise until the fully open stopper on the cam contacts the throttle cam bracket, and then release it and check that the fully closed stopper on the cam contacts the bracket due to the spring force