2005 Yamaha F90TR 90HP Outboards Factory Service Manual, Page 20Get this manual
Maintenance specification Item Oil pump Discharge at 97103 (207217 F) with 10W-30 engine oil Pressure at 97103 (207217 F) with 10W-30 engine oil Relief valve opening pressure Thermostat Opening temperature Fully open temperature Valve open lower limit Unit (US gal, Imp gal)min kPa (kgfcm2, psi) kPa (kgfcm2, psi) (F) (F) mm (in) Model F90TR 5.9 (1.559, 1.298) at 1,000 rmin
118.0 (1.18, 17.1) at 1,000 rmin
441539 (4.415.39, 63.978.2)
5862 (136144) 70 (158) 4.3 (0.17)
Lower unit
Item Gear backlash Pinion-to-forward gear Pinion shims Forward gear shims Unit mm (in) mm mm Model F90TR 0.280.63 (0.01100.0248) 0.10, 0.12, 0.15, 0.18, 0.30, 0.40, 0.50 0.10, 0.12, 0.15, 0.18, 0.30, 0.40, 0.50