Yamaha 25BMH Service Manual page 260

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POWR
CRANKSHAFT AND CYLINDER BODY
5. Check:
Crankshaft bearings
Abnormal noise/damage /
roughness → Replace.
CAUTION:
Do not use compressed air to spin the bear-
ings dry. This causes damage to the bearing
surfaces.
NOTE:
Do not reuse the bearing, always replace it
with a new one.
5-38
E

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