Suzuki DF 90 Service Manual page 207

6-62 POWER UNIT
4. Install crankcase to cylinder.
5. Apply engine oil lightly to crankcase bolts.
6. Tighten crankcase bolts in three (3) steps according to the
order shown below and in figure.
NOTE:
After tightening crankcase bolts, check to be sure that crank-
shaft rotates smoothly when turned by hand.
Crankcase bolt :
1st step 8 mm
10 mm
2nd step 8 mm
10 mm
Final step 8 mm
10 mm
CYLINDER HEAD
Install cylinder head. (See page 6-21 to 6-23)
OIL PUMP
Install oil pump assembly. (See page 6-13)
TIMING CHAIN
Install timing chain. (See page 6-17 to 6-19)
POWER UNIT
Install power unit. (See page 6-9 to 6-11)
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