Yamaha YZ250(W)/W1, Owner'S Service Manual

Page: 360 / 596

6. Install:
9 Holder (except for USA and CDN)
1
9 Bolt [holder (except for USA and CDN)]
2
9 Bolt (crankcase)
NOTE:
Tighten the crankcase tightening bolts in stage,
using a crisscross pattern.
4-71
CRANKCASE AND CRANKSHAFT
ENG
8. Tighten:
9
Segment
1
9 Bolt (segment)
2
NOTE:
9 When installing the segment onto the shift cam
3
, align the punch mark
a
with the dowel pin
b
.
9 Turn the segment clockwise until it stops and
tighten the bolt.
c C
If the segment gets an impact, it may be
damaged. Take care not to give an impact
to the segment when tightening the bolt.
30 Nm (3.0 m•kg, 22 ft•lb)
7. Install:
9 Tension spring
1
9 Holder
2
9
Bolt (holder)
3
NOTE:
Install the holder so that it contacts the projec-
tion
a
on the crankcase (right).
10 Nm (1.0 m•kg, 7.2 ft•lb)
9. Remove:
9 Sealant
Forced out on the cylinder mating surface.
10. Apply:
9
Engine oil
To the crank pin, bearing, oil delivery hole
and connecting rod big end washer.
11. Check:
9
Crankshaft and transmission operation
Unsmooth operation
→
Repair.
14 Nm (1.4 m•kg, 10 ft•lb)
14 Nm (1.4 m•kg, 10 ft•lb)
1P8-9-32-4c 5/1/06 10:47 AM Page 44