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78
VI.
SERVICE
DATA
4. TECHNICAL SERVICE DATA
Engine
Unic:
mm
(inch)
Item
Assembly standard
Service limit
'
Rocker arm-to-shaft
clearance
0.013-0.043(0.0005-
0.0011)
0
1
(0.0039)
-
Intake
I
25. 058
(0.
9865)
24.
9
(0.
9803)
Cam
height
Exhaust
24. 872
(0. 9792)
24. 7 (0.
9724)
Valve se.ot
width
1.2
±0.2
(0.0394-0.0551)
1.8
(0.0709)
Intake
5.48-
5.49 (0.2157--0.
2161)
5.42(0.2 134)
Valve stem
OD
Exhaust
5.46-
5.472
(0.
21
so
0.2154)
5.40 (0. 2126)
Valve-to-guide
Intake
0.015--0.035
(0.0006-0.0014)
-
clearance
Exhaust
0.033-0.055
(0.0013
0.0022)
--
Inner
5.
72-
6.38/27
-
(12.61 -14.51/
1.0630)
Valve
spring load
Outer
I
0.6
-
12
2 kg/30
-
(23.37-
26. 90
lbs/I.
1811)
Vah·e spring free
I
Inner
33.
2S (J.309 1)
32.0
(
L
2598)
length
Outer
35.05
(13799)
34.S (1.3583)
Cylinder
ID
55.50-5.5. 51
(2.1850-
2.
1834)
55.6
(2.
1890)
Piston skirt OD
55.47-
55.49
(2.
1839-
2. 1846)
56.42
(2.1819)
Piston
pin hole
dia. in
pisto11
15.
002-15. 008 (0.
5906
0. 5909)
15.05 (0.5925)
Piston
pin OD
14.994 15.
000
(0.
5903-
0. 5906)
14.9
(0.5866)
t
--
Piston ring travel
Top
0.04- 0.075
(0.0016-
0.0030)
0.
15
(0.
0059)
Second
0025-
0.06
(0.0010 -0.0024)
0. I
5
(0.
0059)
in groove
Oil
0.015-0.045 (0.0006 0.00 18)
0.15 (0.0059)
Top
0.15 0.35
(0.0059-
0.01
38)
0
75
(00259)
Piston
ring gap
Second
0. 15 0.35
(0.0059-0.0138)
o.
75
(0.0295)
Oil
0.
15
-
0.35 (0.0059 0.0138)
0.
75 (0.0295)
Pump body-to-plunger cle.irance
0.025-0.063
(0.0010
0.0025)
0.
17
(0.0067)
Clutch outer-to-pump rod
clearance
0.
025- 0.
07 S (0.
00 I
0-0. 0030)
0.
I
5 (0. 005Q)
Friction
disc
thickness
2.
92-
3.08
(0.
I 150
0.1213)
2.6
(0.1024)
Clutch plate warpage
0.1
(0.0039)
0.
2
(0.
0079)
Clutch spring load
2c.5il 7.4-19.4
kg
(0.8858/38. 36-42
77
kg)
'
-
Clutch
spring
free
length
28.26 (1.1126)
2(,
7
(
1.0512)
C-shift fork finger width
S.36-
5.44
(0.
2110 0.2142)
5. 0
(0.
1969)
-
Gearshift drum OD
31950
33.
975
(1.3366-
1. 3376)
33. 9
(I.
3346)
-
Gearshift fork ID
34.000 34.025 (1
.3386-
1.3396)
34.075
(1..1415)
-
Gearshift fork guide pin
0.1
1
0. 228 (0.0043-0.0090)
0. 5 (0.0197)
clearance in grom·c
in
drum
1st,
2nd,
0.08!1-0.
179
(0.0035-
0.0070)
0. 2 (0. 0079)
Transmission
gear
3rd
~
backlash
4th
,
5th
0.094-0.188 (0.0037
0.0074)
0.
2
(0.
0079
J
I
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