All Replacement Parts; Gaskets, Oil Seals And O-Rings; Lock Washers/Plates And Cotter Pins; Bearings And Oil Seals - Yamaha YZ250(V) Owner's Service Manual

Yz series
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IMPORTANT INFORMATION
EC132000

ALL REPLACEMENT PARTS

1. We recommend to use Yamaha genuine
parts for all replacements. Use oil and/or
grease
assembly and adjustment.
EC133000

GASKETS, OIL SEALS AND O-RINGS

1. All gaskets, oil seals, and O-rings should be
replaced when an engine is overhauled. 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.
EC134000
LOCK WASHERS/PLATES AND COTTER
PINS
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.
EC135001

BEARINGS AND OIL SEALS

1. Install the bearing (s) 1 and oil seal (s) 2
with their manufacturer's marks or numbers
facing
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 bear-
ings liberally when installing.
cC
Do not use compressed air to spin the
bearings dry. This causes damage to the
bearing surfaces.
1-4
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