APRILIA RS 250 Service And Repair Manual page 217

8 - 51MSERVICING INFORMATION
THERMOSTAT - RADIATOR
Item
Thermostat valve opening
temperature
Thermostat valve lift
Radiator cap valve
opening pressure
TRANSMISSION
Item
Primary reduction ratio
Final reduction ratio
Gear ratios
Shift fork to groove clearance
Shift fork groove width
Shift fork thickness
DRIVE CHAIN
Item
Drive chain
Drive chain slack
Standard
50 ± 2°C
Over 7 mm at 65°C
110 kPa (1,1 kg/cm
Standard
2,565 (59/23)
3,071 (43/14)
Low
2nd
3rd
4th
5th
Top
0,1 - 0,3
No. 1 & No. 2
No. 3
No. 1 & No. 2
No. 3
Standard
Type
Links No.
20-pitch lenght
25 - 30
2 )
2,454 (27/11)
1,625 (26/16)
1,235 (21/17)
1,045 (23/22)
0,916 (22/24)
0,840 (21/25)
4,0 - 4,1
5,5 - 5,6
3,8 - 3,9
5,3 - 5,4
D.I.D. 520 V6
110
Limit
–
–
–
Limit
–
–
–
–
–
–
–
–
0,5
–
–
–
–
Limit
–
–
304
–