2005 Yamaha F90TR 90HP Outboards Factory Service Manual, Page 114Get this manual
Cylinder block NOTE: Cylinder block journal inside diameters (#1 #5) and crankshaft journal diameters (#1#5) can be determined by the stamped value as described belowCrankshaft journal diameter47.900(stamped value1,000) Example: #192 47.992 Cylinder block journal inside diameter54.000(stamped value1,000) Example: #132 54.032 4Select the suitable color for the main bearing from the table below according to the calculated values CAUTION:
The () mark indicates that the colors of the upper and lower bearings are different Be sure to install the main bearings in the middle of the cylinder block and crankcase journal so they do not block the oil holesNOTE: Main bearing #3 is thrust bearingExample: If the "Crankshaft journal mark" is 92, and the "Cylinder block mark" is 32, then the "Calculated value"54.032 47.9926.040 mm Suitable colors: Bearing (cylinder side) thrust bearing blue Bearing (crankcase side) blue 5If the calculated value is more than the maximum value (6.058 mm), replace the crankshaftMain bearing selection table (20 [68 F])