Installing The Crankshaft - Yamaha WR250FM 2021 Owner's Service Manual

EAM30493

INSTALLING THE CRANKSHAFT

1. Install:
• Crankshaft assembly
TIP
Install the crankshaft assembly with the crank-
shaft installer pot "1", crankshaft installer bolt "2",
adapter (M12) "3" and spacer "4".
Crankshaft installer pot
90890-01274
Installing pot
YU-90058
Crankshaft installer bolt
90890-01275
Bolt
YU-90060
Adapter (M12)
90890-01278
Adapter #3
YU-90063
Spacer (crankshaft installer)
90890-04081
Pot spacer
YM-91044
ECA26470
NOTICE
In order to prevent the crankshaft seizure,
apply molybdenum disulfide grease.
TIP
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.
CRANKSHAFT AND BALANCER SHAFT
4
3
1
2
5-72
M