2006-2010 Suzuki DF150 / DF175 4-Stroke Outboards Service Manual, Page 249Get this manual
POWER UNIT
8Install the lower camshaft housing
1Lower camshaft housing
9Check position of camshaft housing Embossed marks are provided on each camshaft housing indicating position and direction of installationInstall housings as indicated by these marks
IIntake sideExhaust side Position from flywheel magneto side Pointing to flywheel magneto side
10Apply engine oil to housing bolts11Lightly seat all housing bolts at firstFollowing sequence in figure, tighten bolts to 13 of specified torque, then 23 of specified torque and finally to full specified torque" Camshaft housing bolt: 12 Nm (1.2 kg-m, 8.7 lb-ft)