2005 Yamaha F90TR 90HP Outboards Factory Service Manual, Page 16Get this manual
General specifications Item Fuel and oil Fuel type Fuel minimum rating Engine oil Engine oil grade Engine oil quantity (without oil filter replacement) (with oil filter replacement) Gear oil type Gear oil grade Gear oil quantity Bracket unit Trim angle (at 12 boat transom) Tilt-up angle Steering angle Drive unit Gear shift positions Gear ratio Reduction gear type Clutch type Propeller shaft type Propeller direction (rear view) Propeller mark Electrical Battery minimum capacity(2) CCASAE MCAABYC RCSAE (1)
Model F90TR Regular unleaded gasoline 91 86 4-stroke motor oil SE, SF, SG, SH, or SJ 10W-30 or 10W-40 4.3 (4.55, 3.78) 4.5 (4.76, 3.96) GEAR CASE LUBE 90 670 (22.7, 23.6)