Yamaha 4TX-AE1, Service Manual

Page: 186 / 332

4-62
A
B
CRANKSHAFT
ENG
CAUTION:
NOTE:
10 Nm (1.0 m kg)
10. Install:
Lower crankcase 1
(onto upper crankcase 2 )
Place the lower crankcase assembly onto the
upper crankcase assembly.
Before tightening the crankcase bolts, check
the following point:
Be sure the gears shift correctly when the
shift cam is turned by hand.
11. Tighten:
Lower crankcase bolt
(follow the proper tightening sequence)
Upper crankcase bolt
1 6 (M10):
40 Nm (4.0 m kg)
7 10 , 13 , 15 , 20 25 (M8)
24 Nm (2.4 m kg)
11
,
12
,
13
,
15 19
,
26
,
27
(M6)
12 Nm (1.2 m kg)
A Upper crankcase
B
Lower crankcase
Lubricate the threads of bolts (No. 1 6 ) with
molybdenum disulfide motor oil.
Lubricate the threads of bolts (No. 7
27
) with
engine oil.
Install a copper washer on bolts No. 18 , 21 , 23 ,
25
.
Install a lead holder on bolt No.
20
.
Tighten the bolts in the tightening sequence cast
on the crankcase.
12. Install:
Cover plate