1996-2005 Suzuki DF40, DF50 Four Stroke Outboard Service Manual, Page 171Get this manual
POWER UNIT 6-28 Camshaft journal oil clearance Check journal oil clearance using Plastigauge as follows1Clean housing and camshaft journals2Install camshaft to cylinder head3Place Plastigauge across the full width of camshaft journal (parallel to camshaft)09900-22302Plastigauge
4Install camshaft housingTighten housing bolts in steps (13 of specification, 23 of specification, full torque specification) in the indicated orderCamshaft housing bolt10 (1.0 kg-m, 7.0 lbft
NOTE: Do not rotate camshaft while Plastigauge is installed5Remove camshaft housing6Using scale on Plastigauge envelope, measure Plastigauge at its widest pointCamshaft journal oil clearance Standard0.045 0.087 mm (0.0018 0.0034 in Service limit0.120 mm (0.0047 in