Yamaha WR250F(N), Руководство по эксплуатации для владельца

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ENG
CRANKCASE AND CRANKSHAFT
Crankshaft
1. Remove:
●
Crankshaft 1
Use the crankcase separating tool 2 .
CAUTION:
Do not use a hammer to drive out the
crankshaft.
Crankcase bearing
1. Remove:
●
Bearing 1
NOTE:
●
Remove the bearing from the crankcase by
pressing its inner race.
●
Do not use the removed bearing.
Crankcase separating tool:
YU-1135-A/90890-01135
INSPECTION
Timing chain and timing chain guide
1. Inspect:
●
Timing chain
Cracks/stiff
→
Replace the timing chain
and camshaft sprocket as a set.
2. Inspect:
●
Timing chain guide
Wear/damage
→
Replace.
Crankcase
1. Inspect:
●
Contacting surface
a
Scratches
→
Replace.
●
Engine mounting boss
b
, crankcase
Cracks/damage
→
Replace.
2. Inspect:
●
Bearing
Rotate inner race with a finger.
Rough spot/seizure
→
Replace.
3. Inspect:
●
Oil seal
Damage
→
Replace.