Yamaha WR250F(N), Owner'S Service Manual

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ENG
CRANKCASE AND CRANKSHAFT
6. Tighten:
●
Hose guide 1
●
Clutch cable holder 2
●
Bolt (crankcase) 3
NOTE:
Tighten the crankcase tightening bolts in
stage, using a crisscross pattern.
T
R
.
.
12 Nm (1.2 m · kg, 8.7 ft · lb)
7. Install:
●
Oil delivery pipe 2 1
●
O-ring 2
●
Bolt (oil delivery pipe 2) 3
NOTE:
Apply the lithium soap base grease on the O-
rings.
T
R
.
.
10 Nm (1.0 m · kg, 7.2 ft · lb)
8. Install:
●
Timing chain 1
●
Timing chain guide (intake side) 2
●
Bolt (timing chain guide)
3
9. Remove:
●
Sealant
Forced out on the cylinder mating sur-
face.
10. Apply:
●
Engine oil
To the crank pin, bearing and oil deliv-
ery hole.
11. Check:
●
Crankshaft and transmission operation.
Unsmooth operation
→
Repair.
T
R
.
.
10 Nm (1.0 m · kg, 7.2 ft · lb)