Gear Selection - Yamaha SXV70SJ Supplementary Service Manual

1 Chain and sprocket part number
Parts name
A
E Drive s rocket Drive sprocket
F Driven sprocket Driven s rocket
G
Chain Chain
2 Gear ratio
Drive gear
A
B Driven gear
37 teeth 37 teeth
38 teeth 38 teeth
39 teeth 39 teeth
40 teeth 40 teeth
3 Secondary sheave spring
A B
Part no. Spring rate
(torsion)
NSmm / rad
(kgSmm / rad)
90508-500B1 6003 (613)
90508-536A9 7147 (729)
90508-556A2 8314 (848)
90508-556A7 9460 (965)
4 Secondary spring twist angle
90508-500B1 (brown) / 90508-536A9 (red) / 90508-556A2 (green) / 90508-556A7 (silver)
A
Sheave
B
1
2
3
Teeth & links
B
18 teeth
19 teeth
20 teeth
21 teeth
22 teeth
23 teeth
37 teeth
38 teeth
39 teeth
40 teeth
68 links
70 links
18 teeth 19 teeth 20 teeth 21 teeth 22 teeth 23 teeth 18 teeth 19 teeth 20 teeth 21 teeth 22 teeth 23 teeth
2.17 2.05
68 links 68 links
2.22 2.11
68 links 68 links
C
Springrate D Color
(compression)
N / mm (kg / mm)
(lb / in)
6.2 (0.63), 35.28 Brown 5.0 (0.196)
7.3 (0.74), 41.44 Red 5.3 (0.209)
8.5 (0.87), 48.72 Green 5.5 (0.216)
10.21 (1.04), 58.24 Silver 5.5 (0.216)
Seat
0
10_
20_
30_

GEAR SELECTION

Parts no.
C
8DW-17682-80
8DW-17682-90
8DW-17682-00
8DW-17682-10
8DW-17682-20 SXV70SJ/VT70J (U.S.A, CAN)
8DW-17682-30
8DW-47587-70
8DW-47587-80
8FB-47587-90
8DW-47587-00
94890-09068
94890-09070
1.76
68 links 68 links
1.90 1.81
68 links 68 links 68 links
1.95 1.86
68 links 68 links 70 links
2.00 1.91
68 links 70 links 70 links
E G
Wire F No. of Free
gauge coils length
mm (in) mm (in)
5.19 75 (2.95)
5.53 75 (2.95)
5.53 75 (2.95)
4.86 75 (2.95)
3
40_
50_
60_
–16–
INSP
ADJ
Standard
D
VT70J (EUR)
SXV70SJ
VT70J
SXV70SJ/VT70J (EUR)
VT70J (U.S.A, CAN)
1.68 1.61
68 links
1.73 1.65
70 links
1.77 1.70
70 links
1.82 1.74
70 links
H
Outside I Standard
diameter
mm (in)
69.5 (2.736)
69.5 (2.736) SXV70SJ
69.5 (2.736) VT70J
69.5 (2.736)
6 9
70_ 100_
80_ 110_
90_ 120_