2005 Yamaha F90TR 90HP Outboards Factory Service Manual, Page 184Get this manual
Gear pump Lever bolt (M3) B, C: Nm (0.2 kgfm, 1.5 ftlb)
9Install the up-relief valve seat and down-relief valve seat E10Install the relief valve seat caps by installing bolts and H, then tightening them to the specified torques11Tighten the bolts to the specified torque
S6C17620
4Install the adapters into the gear pump cover5Install the balls into the gear pump cover with the manual release spring 86Install the gear pump bracket by installing the bolts, then tightening them to the specified torques