Service manual

GEN
INFO
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IMPORTANT INFORMATION
EAS00020
IMPORTANT INFORMATION
PREPARATION FOR REMOVAL AND
DISASSEMBLY
1. Before removal and disassembly,
remove all dirt, mud, dust, and foreign
material.
2. Use only the proper tools and cleaning
equipment.
Refer to “SPECIAL TOOLS”.
3. When disassembling, always keep
mated parts together. This includes
gears, cylinders, pistons, and other parts
that have been “mated” through normal
wear. Mated parts must always be
reused or replaced as an assembly.
4. During disassembly, clean all of the parts
and place them in trays in the order of
disassembly. This will speed up assem-
bly and allow for the correct installation
of all parts.
5. Keep all parts away from any source of
fire.
EAS00021
REPLACEMENT PARTS
Use only genuine Yamaha parts for all
replacements. Use oil and grease recom-
mended by Yamaha for all lubrication jobs.
Other brands may be similar in function
and appearance, but inferior in quality.
EAS00022
GASKETS, OIL SEALS AND O-RINGS
1. When overhauling the engine, replace all
gaskets, seals, and O-rings. All gasket
surfaces, oil seal lips, and O-rings must
be cleaned.
2. During reassembly, properly oil all mat-
ing parts and bearings and lubricate the
oil seal lips with grease.
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