2005 Yamaha F90TR 90HP Outboards Factory Service Manual, Page 116Get this manual
Cylinder block 6Set the crankshaft and oil seals and into the cylinder block as shownNOTE: Make sure that the large, flat side of the connecting rod faces towards the flywheel magnet side of the crankshaft Apply engine oil to the connecting rod caps and connecting rod bolts before installationConnecting rod bolt A: 1st: 18 Nm (1.8 kgfm, 13.3 ftlb) 2nd: 80
8Install half of the bearings into the crankcase9Apply sealant to the mating surface of the crankcaseS6D85700
7Install the connecting rod cap to the connecting rod, and then tighten the new connecting rod bolts to the specified torques in two stages