Mercury 35/40HP 2 Cylinder Outboards Service Manual PN 90-42794--1, Page 378Get this manual
4Remove bolts and washers (a) from main body cover (b) using an Bmm wrench 6Remove clip (a) from shaft (b)
7Carefully remove diaphragm plate (a)
5Remove main body cover (a) from main body (b)
Diaphragm Plate Inspection