2006-2010 Suzuki DF150 / DF175 4-Stroke Outboards Service Manual, Page 380Get this manual
LOWER UNIT
Checking and adjusting tooth contact pattern (Pinion and Forward gear) Check tooth contact pattern using the following procedure: 1To assess tooth contact, apply light coat of Prussian Blue on the convex surface of forward gear
2Install propeller shaft and housing assembly (minus reverse gear and internal components)3Push propeller shaft inward and hold in position4Using driveshaft holder tool, rotate the driveshaft times" 09921-29410: Driveshaft holder