Yamaha XS650SG Specifications Page 155
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Rated. / 5. Based on customer reviews
Valve stem diameter
IN: 8.0
~~:~~~
mm (0.315
Ig:Eo
in)
EX: 8.0
I::$“,
mm (0.315
I~:~~~
in)
Valve guide diameter
EX:8.0
$iiz
mm (0.315
:E:EE
in)
Valve stem to guide clearance
IN: 0.020
-
0.044 mm (0.00079
-
0.00173 in)
EX: 0.035
-
0.059 mm (0.00138
-
0.00232 in)
10. VALVE SPRING
1) Free length
INNER
(IN/EX):
42 mm (1.654 in)
OUTER
(IN/EX):
42.55 mm (1.675 in)
2) Spring rate
INNER
(IN/EX):
kr
= 1.43 kg/mm (80.1 lb/in)
kz
= 1.81 kg/mm (101.4 lb/in
OUTER
(IN/EX):
kr
= 3.2 kg/mm (179.2 lb/in)
kz
= 4.18
kg/mm(234.1
lb/in)
3) Installed length (Valve closed)
INNER
(IN/EX):
35 mm (1.378 in)
OUTER
(IN/EX):
37 mm (1.457 in)
4) Installed pressure (Valve closed)
INNER
(IN/EX):
10
kO.7
kg (22.0
-t
1.5 lb)
OUTER
(IN/EX):
17.7
+
1.25 kg (39.0
f
2.8 lb)
5) Compressed length (Valve open)
INNER
(INIEX):
25.5 mm (1.004 in)
OUTER
(IN/EX):
27.5 mm (1.083 in)
6) Compressed pressure (Valve open)
INNER
(IN/EX):
27.2
f
1.9 kg (60.0
f
4.2 lb)
OUTER
(IN/EX):
57.4
+4.0
kg (126.5
*
8.8 lb)
7) Wire diameter
INNER
(IN/EX):
2.9 mm (0.114 in)
OUTER
(IN/EX):
4.2 mm (0.165 in)
8) Winding D.D.
INNER
(IN/EX):
19.4 mm (0.764 in)
OUTER
(IN/EX):
32.6 mm (1.283 in)
9) Number of windings
INNER
(IN/EX):
6.0 turns
OUTER
(IN/EX):
4.25 turns
1)
Crankshaft deflection limit
(A)
0.05 mm (0.002 in)
2) Con-rod large end clearance
(6)
0.15
-
0.4 mm (0.0059
-
0.0157 in)
3) Width of crankshaft
(C)
663.2
mm (2.598
1E.g
in)
(D)
186
-:.a
mm (7.323
_E.o,g
in)
4) Crank pin I.D.
26
::“A:
mm (1.024
_i:“d
in)
5) Crank pin O.D.
x
length
28
_o.M)6
x 65
TX::
mm
0
(1.024
_&,os
x
2.559z:zin)
12. CONNECTING ROD
1)
Big
end I.D.
34
+tol’
mm (1.339 +i.0°06 in)
2) Small end I.D.
20
$‘z”,
mm (0.787 ~~:~~~ in)
13. CRANK BEARING
1)
Type Right end
@30-$78-19
Others
@32-@68-17
2) Oil seal type
SD-2540-9
_
on
-
- CHAPTER 1 4
- GENERAL INFORMATION 4
- CHAPTER 2 7
- .Throttle 11
- 3. Adjuster 12
- 1. Vertical adjustment 19
- 2. Horizontal adjustment 19
- CHAPTER 3. ENGINE OVERHAUL 20
- CHAPTER 3 22
- ENGINE OVERHAUL 22
- L. Transmission illustration 25
- Transmission 25
- M. Shift drum removal 25
- Release 26
- Standard width 28
- Wear limit 28
- (0.0016Q.0031 31
- in1 10.0012 -0.0028 in) 31
- Crankcases and oil passages 33
- CHAPTER 4 38
- CARBURETION 38
- CHAPTER 5. CHASSIS 42
- CHAPTER 5 43
- Caliper 44
- 180” opposite the 48
- --_w--J’ 49
- Grease fitting 52
- CHAPTER 6 53
- ELECTRICAL 53
- CHAPTER 7. APPENDICES 64
- 30 mm bolt 65
- 7.3. SPECIFICATION 68
- A. General 68
- Electrical 74
- -IrIm” 81
- U*r,rlll 81
- IS recommended that these 86
- NEW SERVICE 88
- Romr pointer 89
- 1. lgnitor unit 91
- ‘““y”“““bm 92
- C. Chassis 100
- XxiD”Sti 101
- XS650H/SH 113
- SUPPLEMENT 113
- MODELS 1978-80 113
- FOREWORD 114
- ~ 0.01 mm (0.0004 in) 126
- ~0.2 mm (0.008 in) 129
- Gear ratio: 1st 130
- D. Electrical 133
- FULL OPERATIONAL 139
- SERVICE BRAKE 139
- Supplementary 141
- Fuel petcock cleaning 144
- Balance weight 147
- PAGE 48) 148
- 2. Troubleshooting/inspection 149
- To starter relay 151
- To A.C. Generator 151
- Meter light 151
- INITIAL BREAK-IN 168
- AND REPAIR 171
- D. Valve spring 171
- Balance 172
- 8 and 7 192
- P to 90 kg 195
- i’Oimmarl ii 201
- Torque Specifications 202
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