Yamaha WR250R Service Manual page 237

CRANKSHAFT ASSEMBLY AND BALANCER SHAFT
"2", adapter (M12) "3" and spacer "4".
Crankshaft installer pot "1"
90890-01274
Installing pot
YU-90058
Crankshaft installer bolt "2"
90890-01275
Bolt
YU-90060
Adapter (M12) "3"
90890-01278
Adapter #3
YU-90063
Spacer (crankshaft installer) "4"
90890-04081
Pot spacer
YM-91044
ECA13970
CAUTION:
To avoid scratching the crankshaft and to
ease the installation procedure, lubricate the
oil seal lips with lithium-soap-based grease
and each bearing with engine oil.
NOTE:
Hold the connecting rod at top dead center
(TDC) with one hand while turning the nut of the
crankshaft installer bolt with the other. Turn the
crankshaft installer bolt until the crankshaft as-
sembly bottoms against the bearing.
4
3
1
2
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