Mercury Mariner Outboard 225 3 Litre Service Manual 1994, Page 125Get this manual
Powerhead Torque Sequence and Torque Specifications CRANKCASE COVER BOLTS (AND TORQUE SEQUENCE)
Add light oil to threads and bolt faceBolts (M10 1.5 80) 30 lbft(40.7 Nm) and rotate goo
CYLINDER HEAD BOLTS (AND TORQUE SEQUENCE) IMPORTANT Add light oil to threads and bolt face: Bolts 18 and 20Torque to 30 lbft (40.7 Nm) and rotate goo All other boltsTorque to 20 lbft (27.1 Nm) and rotate 90