Yamaha TDM850 1996 Service Manual page 181

A
B
CRANKSHAFT
S Tighten the bolt to specification in the tighten-
ing sequence cast on the crankcase.
1 X 6 (M10):
40 Nm (4.0 mSkg)
7 X
10
24 Nm (2.4 mSkg)
,
11 12
12 Nm (1.2 mSkg)
A
Upper crankcase
B
Lower crankcase
NOTE:
S Lubricate the threads of bolts 1 X 6 with mo-
lybdenum disulfide motor oil.
S Lubricate the threads of bolts 7 X
gine oil.
S Remove the lower crankcase and lower half of
the bearing.
S Measure the compressed Plastigauge width d
on each main journal.
If oil clearance is out of specification, select a re-
placement bearing.
4. Measure:
S Oil clearance (crank pin)
Out of specification ! Replace bearing.
Oil clearance:
0.020 X 0.038 mm
<Limit>: 0.1 mm
Measurement steps:
CAUTION:
Do not interchange the bearings and connect-
ing rod. They must be installed in their original
positions, or the correct oil clearance may not
be obtained causing engine damage.
S Clean the bearings, crank pins and bearing
portions of the connecting rods.
4-57
ENG
X
, , , (M8)
13 15 20 25
X
, , , ,
14 16 19 26 27
(M6)
with en-
27