Yamaha RS90K Manuel D'atelier page 742

Model
Hole position
Sheave side-spring side (twist angle)
Spring rate
Number of coils
Free length
Torque cam angle
Drive chain:
Type
Number of links
Secondary reduction ratio
Maximum 14 link drive chain section length
<Limit>
Track:
Part number
Width
Length
Pitch
Number of links
MAINTENANCE SPECIFICATIONS
RS90/RS90R/RSG90/RS90M/RST90/RST90TF
3-3 (60°) (RS90/RS90R/RSG90/RST90 "USA/Canada")
1-6 (70°) (RS90M/RST90 "Europe"/RST90TF)
12.3 N/mm (1.26 kg/mm, 70.56 lb/in) (RS90/RS90R/
RSG90/RS90M/RST90 "USA/Canada")
13.5 N/mm (1.37 kg/mm, 76.72 lb/in) (RST90 "Europe"/
RST90TF)
5.53 (RS90/RS90R/RSG90/RS90M/RST90 "USA/
Canada")
5.19 (RST90 "Europe"/RST90TF)
75 mm (2.95 in)
43° (RS90/RS90R/RSG90)
39° (RS90M/RST90 "Europe"/RST90TF)
41° (RST90 "USA/Canada")
Borg Warner Automotive 23RH303-68ASM (RS90/RS90R/
RS90M/RST90TF)
Borg Warner Automotive 23RH303-70ASM (RSG90/
RST90)
68L (RS90/RS90R/RS90M/RST90 "Europe"/RST90TF)
70L (RSG90/RST90 "USA/Canada")
1.73 (38/22) (RS90/RS90R)
1.77 (39/22) (RSG90/RST90 "USA/Canada")
2.00 (40/20) (RS90M)
1.95 (39/20) (RST90 "Europe"/RST90TF)
133.35 mm (5.25 in)
137.35 mm (5.41 in)
8FA-47110-00 (RS90/RS90R)
8FG-47110-00 (RSG90)
8EP-47110-00 (RS90M)
8ET-47110-00 (RST90)
8FM-47110-00 (RST90TF)
381 mm (15.0 in)
3,072 mm (120.96 in) (RS90/RS90R)
3,456 mm (136.08 in) (RSG90)
3,840 mm (151.20 in) (RS90M/RST90TF)
3,648 mm (143.64 in) (RST90)
64 mm (2.52 in)
48 (RS90/RS90R)
54 (RSG90)
60 (RS90M/RST90TF)
57 (RST90)
9-11
SPEC