Suzuki DF25/DF30 Four Stroke Service Manual, Page 166Get this manual
POWER UNIT 7-49 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 wearof jurnals 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 Outofround Taper :AB :ab