IMPORTANT INFORMATION

EAS00020

IMPORTANT INFORMATION

PREPARATION FOR REMOVAL AND DISAS-

SEMBLY

1. Before removal and disassembly, remove all dirt, mud, dust and foreign material.

2. Use only the proper tools and cleaning equipment.

Refer to the “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 assembly and allow for the correct installation of all parts.

5. Keep all parts away from any source of fire.

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EAS00021

REPLACEMENT PARTS

Use only genuine Yamaha parts for all replacements. Use oil and grease recommended 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 mating parts and bearings and lubricate the oil seal lips with grease.

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IMPORTANT INFORMATION

EAS00023

LOCK WASHERS/PLATES AND COTTER

PINS

After removal, replace all lock washers/plates

1 and cotter pins. After the bolt or nut has been tightened to specification, bend the lock tabs along a flat of the bolt or nut.

EAS00024

BEARINGS AND OIL SEALS

Install bearings and oil seals so that the manufacturer’s marks or numbers are visible.

When installing oil seals, lubricate the oil seal lips with a light coat of lithium-soap-based grease. Oil bearings liberally when installing, if appropriate.

1 Oil seal c C

Do not spin the bearing with compressed air because this will damage the bearing surfaces.

1 Bearing

EAS00025

CIRCLIPS

Before reassembly, check all circlips carefully and replace damaged or distorted circlips. Always replace piston pin clips after one use. When installing a circlip 1 , make sure the sharp-edged corner 2 is positioned opposite the thrust 3 that the circlip receives.

4 Shaft

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IMPORTANT INFORMATION

GEN

INFO # ^

EAS00021

EQUIPMENT PREPARATION

Push Rivet (Push type)

Assembly status of the push rivet(push type).

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Dissembling

1. Press center p i n 1 inward to release the lock.

2. Remove the push rivet main b o d y 2 .

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Assembling

1. Restore the center pin, replace the push rivet main body.

2. Push in the center pin until leveling off with the surface position of the push rivet main body.

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