Yamaha YXR660FAS Service Manual download pdf (Page 278)

7 - 27

DRIV

Selecting the final drive pinion gear shim

1. Select:

• final drive pinion gear shim(s) 1

▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼▼▼

a. To find the final drive pinion gear shim thick-

ness “A”, use the following formula.

a =92.5 mm

b = a numeral (usually a decimal number) on

the final drive pinion gear bearing housing

either added to “34”

c = a numeral (usually a decimal number) on

the final drive pinion gear bearing housing

either added to “55”

d = a numeral (usually a decimal number) on

the final gear case either added to “112”

Example:

1) a = 92.5

2) If “98” is stamped on the final drive pinion

gear bearing housing,

b = 34 + 0.98

= 34.98

3) If “48” is stamped on the final drive pinion

gear bearing housing,

c = 55 + 0.48

= 55.48

4) If “03” is stamped on the final gear case,

d = 112 + 0.03

= 112.03

5) Therefore, “A” is 0.97.

“A” = 92.5 + (55.48 – 34.98) – 112.03

= 0.97

6) Round off the hundredth digit and select the

appropriate shim(s).

In the example above, the calculated num-

ber is 0.97. The chart instructs you to round

off 7 to 5 at the hundredth place. Thus, the

shim thickness is 0.95 mm.

Final drive pinion gear shim thickness:

“A” =

a

+ (

c

–

b

) –

d

Hundredths Rounded value

0, 1, 2 0

3, 4, 5, 6, 7 5

8, 9 10

b

c

a

d

“A”

1

REAR CONSTANT VELOCITY JOINTS, FINAL DRIVE

GEAR AND DRIVE SHAFT

1 2 ... 273 274 275 276 277 278 279 280 281 282 283 ... 420 421

Comments to this Manuals

No comments