Yamaha WR450F 2003 Manual De Servicio Del Propietario página 32

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IMPORTANT INFORMATION

ALL REPLACEMENT PARTS

1. We recommend to use Yamaha genuine

parts for all replacements. Use oil and/or

grease recommended by Yamaha for

assembly and adjustment.

GASKETS, OIL SEALS AND O-RINGS

1. All gaskets, oil seals, and O-rings should

be replaced when an engine is over-

hauled. All gasket surfaces, oil seal lips,

and O-rings must be cleaned.

2. Properly oil all mating parts and bearings

during reassembly. Apply grease to the

oil seal lips.

LOCK WASHERS/PLATES AND COTTER

1. All lock washers/plates 1 and cotter pins

must be replaced when they are

removed. Lock tab(s) should be bent

along the bolt or nut flat(s) after the bolt

or nut has been properly tightened.

BEARINGS AND OIL SEALS

1. Install the bearing(s) 1 and oil seal(s) 2

with their manufacturer's marks or num-

bers facing outward. (In other words, the

stamped letters must be on the side

exposed to view.) When installing oil

seal(s), apply a light coating of light-

weight lithium base grease to the seal

lip(s). Oil the bearings liberally when

Do not use compressed air to spin the

bearings dry. This causes damage to the

bearing surfaces.

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