1998-2006 Yamaha F20/F25 Outboards Service Manual, Page 195Get this manual
NOTE: Do not put the Plastigauge over the oil hole in the main journal of the crankshaft Install the other half of the bearings CD into the crankcase Install the crankcase onto the cylinder body Tighten the bolts in the proper sequence and in two stages
Put piece of Plastigauge on each main journal
Align each bearing projection with the notch in the crankcase Do not move the crankshaft until the main-bearing oil clearance measurement has been completedBolt (M8): 1st: 15.0 Nm (1.5 kg, 2nd: 30.0 Nm (3.1 kg, Bolt (M6): 1st: 6.0 Nm (0.6 kg, 2nd: 12.0 Nm (1.2 kg,