Yamaha 440 Service Manual download pdf (Page 17)

1980

SRX440

2/~'

,--------

~/

----------

3

e. Clean cylinder in solvent, then wash

with

hot

soapy water. Dry. Coat

walls

with

light

oil film.

13. Cylinder installation

a. Install a

new

cylinder base gasket.

b Install cylinder

with

one hand

while

c. Remove any obstructions from the coo-

lant

passages.

15,

Cylinder head installation

Install cylinder head gasket, D-ring and

cyiinder head.

Working

in a crisscross

pattern,

tighten

head nuts in

two

steps.

compressing piston rings

with

other

Tightening torque

hand.

First

20 Nm 12.0 m-kg)

10 mm nut

.

Final

30 Nm 13.0 m-kq)

I~V

II:;

First

20

Nm 12.0 m-kq)

Makesuretnerin

gs aI e properlvposttionad,

8 mm nut

..

,"" Final

25 Nm 12.5 m-kg)

14.

Cylinder head inspection

a. Remove spark plug.

b. Using a rounded scraper, remove

carbon deposits from

combustion

chamber. Take care

to

avoid damaging

spark plug threads. Do

not

use a sharp

instrument.

Avoid

scratching the al-

uminum.

2-11

NOTE:

------------

When

the

cylinder head is installed on

the

cylinder,

the

D-ring

may

easily fall

off

the

cylinder. 'Itis advisable, therefore,

to

coat

the

D-ring groove sparingly

with

grease before

this

procedure.

16. Intake'manifold installation

a. Clean the

mating

surfaces of cylinder

and intake manifold.

b. Coat

the

mating

surfaces of cylinder

and

intake manifold

with

YAMAHA

BDN D

#4 and install

new

intake manifold gas-

kets.

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