Mercury Mariner Outboard 225 3 Litre Service Manual 1994, Page 52Get this manual
5 Install end coverSecure cover with screwsTorque screws to 23 lbin(2.6 Nm).lnstall terminal insulatorTorque nut to 36 lbin(4.0 Nm)
1While holding rotor shaft, remove pulley nut
a Pulley Rotor ShaftNut