Gear Selection - Yamaha RSG90GTW Supplementary Service Manual

1 Chain and sprocket part number
È Parts name
Ì Drive sprocket
Í Driven sprocket
Î Chain
2 Gear ratio
È Drive gear
É Driven gear
38 teeth
39 teeth
40 teeth
3 Secondary sheave spring
É Spring rate
È Part No.
N · mm/rad
(kg · mm/rad)
90508-500B1 6003 (613)
90508-536A9 7147 (729)
90508-556A2 8314 (848)
90508-556A7 9460 (965)
90508-60012 11876 (1211)
90508-60007 12654 (1290)
É Teeth & links
19 teeth
20 teeth
21 teeth
22 teeth
23 teeth
24 teeth
38 teeth
39 teeth
40 teeth
68 links
70 links
19 teeth 20 teeth
1.90
—
68 links
2.05 1.95
68 links 68 links
2.11 2.00
68 links 68 links
Ê Preload
Ì Wire gauge
Ë Color
N/mm (kg/mm)
(lb/in)
6.2 (0.63), 35.40 Brown 5.0 (0.197)
7.3 (0.74), 41.68 Red 5.3 (0.209)
8.5 (0.87), 48.53 Green 5.5 (0.217)
10.2 (1.04), 58.24 Silver 5.5 (0.217)
12.3 (1.25), 70.23 Pink 6.0 (0.236)
13.5 (1.38) 77.08 White 6.0 (0.236)

GEAR SELECTION

Ê Parts no.
8FA-17682-90
8FA-17682-00
8FA-17682-10
8FA-17682-20
8FA-17682-30
8FA-17682-40
8FB-47587-80
8FB-47587-90
8FB-47587-00
94890-09068
94890-09070
21 teeth 22 teeth
1.81 1.73
68 links 68 links
1.86 1.77
68 links 70 links
1.91 1.82
70 links 70 links
Î Free length
Í No. of coils
mm (in) mm (in)
5.19 75 (2.95)
5.53 75 (2.95)
5.53 75 (2.95)
4.86 75 (2.95)
5.53 75 (2.95)
5.19 75 (2.95)
9
INSP
ADJ
Ë Standard
RST90GT "Europe"
RSG90GT/
RST90GT "USA/Canada"
RSG90GT/RST90GT
RST90GT "Europe"
RSG90GT/
RST90GT "USA/Canada"
23 teeth 24 teeth
1.65 1.58
70 links 70 links
1.70 1.63
70 links 70 links
1.74 1.67
70 links 70 links
Ï Outside
Ð Standard
diameter
mm (in)
69.5 (2.74)
69.5 (2.74)
69.5 (2.74)
69.5 (2.74)
RSG90GT/
69.5 (2.74) RST90GT
"USA/Canada"
69.5 (2.74) RST90GT "Europe"