2006-2010 Suzuki DF150 / DF175 4-Stroke Outboards Service Manual, Page 220Get this manual
POWER UNIT
1Remove the oil pump(See page 6-26 2Loosen the bolts securing INEXcamshaft timing sprockets to each cam shaftNOTE: Sprocket bolt is LH thread Hold camshaft by placing wrench on the hexagon area of the camshaft