2007 Evinrude E-Tec 75, 90 HP outboards Service Manual, Page 218Get this manual
POWERHEAD ASSEMBLY
Pistons and Connecting Rods
IMPORTANT: It is very important that the pistons in this engine are oriented correctlyNew pistons are stamped "EXH This marking should be oriented to the exhaust side of the blockAs another reference, the splash bowl on the dome of the piston will be located toward the flywheel and opposite the exhaust port
Align bearings with Wrist Pin Bearing Tool, PN 336660
128 needle bearings 2Wrist pin bearing tool 24903
Place the two wrist pin thrust washers on the tool with flat side of the washers facing out