Suzuki DF 90 Service Manual page 199

6-54 POWER UNIT
5. Install crankcase to cylinder.
6. Apply engine oil lightly to crankcase bolts.
Tighten crankcase bolts in three (3) steps according to the
order shown below and in figure.
Crankcase bolt :
1st step 8 mm
10 mm
2nd step 8 mm
10 mm
Final step 8 mm
10 mm
NOTE:
• Crankcase should be torqued to specification in order to
assure proper compression of Plastigauge and accurate
reading of clearance.
• Do not rotate crankshaft while Plastigauge is installed.
7. Remove crankcase from cylinder.
8. Using scale on Plastigauge envelope, measure Plastigauge
width at its widest point.
Crankshaft journal oil clearance :
Standard : 0.020 – 0.040 mm (0.0008 – 0.0016 in.)
Service limit : 0.065 mm (0.0026 in.)
If measurement exceeds service limit, replace crankshaft main
bearing.
NOTE:
For bearing replacement, see "SELECTION OF MAIN BEAR-
ING" section on page 6-55.
5 N . m (0.5 kg-m, 3.5 lb.-ft.)
11 N . m (1.1 kg-m, 8.0 lb.-ft.)
20 N . m (2.0 kg-m, 14.5 lb.-ft.)
43 N . m (4.3 kg-m, 31.0 lb.-ft.)
25 N . m (2.5 kg-m, 18.0 lb.-ft.)
56 N . m (5.6 kg-m, 40.5 lb.-ft.)
Tightening order
Scale
Plastigauge