Suzuki RA410 Manual page 330

Crankshaft thrust play
Tighten crankcase bolts according to next procedure.
1) Tighten bolts 1 to
of their numbers.
2) Tighten bolts 11 to
of their numbers.
3) In the same manner as in 1), tighten them to specified torque.
4) In the same manner as in 2), tighten them to specified torque.
Tightening Torque
to : 58 N·m (5.8 kg-m, 42.0 lb-ft)
1 10
to : 24 N·m (2.4 kg-m, 17.5 lb-ft)
11 20
Use a dial gauge to read displacement in axial (thrust) direction of
crankshaft.
If its limit is exceeded, replace thrust bearing with new standard
one or oversize one to obtain standard thrust play.
Item
Crankshaft thrust
play
Thickness of crank-
shaft thrust bearing
Out-of-round and taper (uneven wear) of journals
An unevenly worn crankshaft journal shows up as a difference in
diameter at a cross section or along its length (or both). This differ-
ence, if any, is determined by taking micrometer readings.
If any one of journals is badly damaged or if amount of uneven wear
in the sense explained above exceeds its limit, regrind or replace
crankshaft.
Limit on out-of-round and taper: 0.01 mm (0.0004 in.)
ENGINE MECHANICAL 6A4-71
10 to 41 N·m (4.1 kg-m, 29.5 lb-ft) in order
20 to 17 N·m (1.7 kg-m, 12.0 lb-ft) in order
Standard
0.11 – 0.31 mm
(0.0044 – 0.0122 in.)
Standard
0.125 mm
Oversize:
(0.0049 in.)
Limit
0.35 mm
(0.0149 in.)
2.500 mm
(0.0984 in.)
2.563 mm
(0.1009 in.)