1996-2005 Suzuki DF40, DF50 Four Stroke Outboard Service Manual, Page 195Get this manual
POWER UNIT 6-52 If measurement exceeds service limit, replace crankshaft thrust bearingCrankshaft thrust bearing thickness Standard2.470 2.520 mm (0.0972 0.0992 in
1Thrust bearing
Outofround and taper (uneven wear) of journals An unevenly worn crankshaft journal shows up as difference in diameter at cross section or along its length (or both)This difference, if any, is determined by taking micrometer readingsIf any journal is badly damaged or if measurements exceed service limit, replace crankshaft09900-20202Micrometer OutofroundTaper :ab Outofround and taper Service limit0.010 mm (0.0004 in Crankshaft journal outside diameter Standard44.982 45.000 mm (1.7709 1.7717 in