2001-2002 Yamaha 50HP F50Z/T50Z Ouboard 4-stroke engines service manual, Page 167Get this manual
Cylinder headMeasure the camshaft journal diameter and cylinder head journal inside diameter Replace the camshaft and cylinder head if out of specification Camshaft journal diameter#1: 36.93-36.94 mm (1.4539-1.4543 in) #2, #3, #4: 36.94-36.95 mm (1.4543-1.4547 in) Cylinder head journal inside diameter37.00-37.02 mm (1.4567-1.4575 in)
S62Y5560
Calculate the camshaft oil clearance as followsReplace the camshaft and cylinder head as set if out of specification