Mercury Mariner 8/9.9HP 4-Stroke Factory Service Manual, Page 244Get this manual

Mercury Mariner 8/9.9HP 4-Stroke Factory Service Manual, Page 244

Removal 1Before removing the starter grip, pull out the starter rope and make knot in the rope to prevent the rope from being pulled into the starter
Disassembly
WARNING
Wear safety glasses for eye protection when disassembling the rewind starterThe spiral spring could jump out and uncoil causing injury
Pinion Gear
1Loosen jam nut and remove top bolt (a)2Push out the cross pin and remove pinion