Gear Selection - Yamaha PZ50W 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
40 teeth
41 teeth
45 teeth
46 teeth
3 Secondary sheave spring
É Spring rate
È Part No.
N · mm/rad
(kg · mm/rad)
90508-50571 7071 (721)
90508-50746 7071 (721)
90508-55012 8125 (829)
90508-55007 9131 (931)
90508-58007 10098 (1030)
90508-60015 11603 (1183)
É Teeth & links
17 teeth
18 teeth
19 teeth
20 teeth
40 teeth
41 teeth
45 teeth
46 teeth
80 links
82 links
17 teeth
2.41
80 links
2.65
82 links
2.71
82 links
Ê Preload
Ì Wire gauge
Ë Color
N/mm
(kg/mm, lb/in)
8.7 (0.89, 49.84) Pink 5.0 (0.197)
8.7 (0.89, 49.84) White 5.0 (0.197)
9.0 (0.92, 51.52) Brown 5.5 (0.217)
10.6 (1.08, 60.48) Red 5.5 (0.217)
11.3 (1.16, 64.96) Blue 5.8 (0.228)
13.1 (1.34, 75.04) Yellow 6.0 (0.236)

GEAR SELECTION

Ê Parts no.
8GC-17682-70
8GC-17682-80
8GC-17682-90
8GC-17682-00
8GC-47587-00
8GC-47587-10 PZ50/PZ50GT/PZ50FX/PZ50M
8GC-47587-50
8GC-47587-60
94591-63080 PZ50/PZ50GT/PZ50FX/PZ50M
94591-63082
18 teeth 19 teeth
80 links
2.28
80 links 80 links
2.50
82 links 82 links
2.56
82 links 82 links
Î Free length
Í No. of coils
mm (in) mm (in)
4.74 85 (3.35)
4.74 93.5 (3.68)
5.99 85 (3.35)
5.33 85 (3.35)
5.99 85 (3.35)
5.99 85 (3.35)
2-56
INSP
ADJ
Ë Standard
PZ50M "USA/Canada"
PZ50/PZ50FX/
PZ50VT "Europe"/PZ50MP
PZ50M "Europe"/
PZ50VT "USA/Canada"
PZ50GT
PZ50VT/PZ50MP
PZ50VT/PZ50MP
20 teeth
2.11 2.00
80 links
2.16 2.05
80 links
2.37 2.25
82 links
2.42
Ï Outside
Ð Standard
diameter
mm (in)
65 (2.559)
65 (2.559)
66 (2.598)
PZ50/PZ50GT/
66 (2.598)
PZ50FX/PZ50M
66 (2.598) PZ50VT/PZ50MP
66 (2.598)