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IMPORTANT INFORMATION
ESS00017
ALL REPLACEMENT PARTS
We recommend using genuine Yamaha parts
for all replacements. Use oil and grease recom-
mended by Yamaha for assembly and adjust-
ments.
ESS00018
GASKETS, OIL SEALS, AND O-RINGS
1. All gaskets, seals, and O-rings should be re-
placed 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.
ESS00019
LOCK WASHERS/PLATES AND COTTER
PINS
All lock washers/plates 1 and cotter pins must
be replaced if 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.
ESS00020
BEARINGS AND OIL SEALS
Install the bearings 1 and oil seals 2 with their
manufacturer's marks or numbers facing out-
wards. (In other words, the stamped letters
must be on the side exposed to view.) When
installing oil seals, apply a light coating of light-
weight lithium base grease to the seal lips. Oil
the bearings liberally when installing.
CAUTION:
Do not use compressed air to spin the bear-
ings dry. This causes damage to the surface
of the bearings.
1-3
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