Yamaha Libero 65 Owner's Manual page 63

Spark plug :
Type/Manufacturer P-RA7HC--(CHAMPION)
Spark plug gap 0.8 ± 0.1 mm
Clutch type : Wet, multiple-disc
Transmission :
Primary reduction system Spur gear
Primary reduction ratio 3.722 (67/18)
Secondary reduction system Chain drive
Secondary reduction ratio 3.214 (45/14)
Transmission type Constant mesh 4 speed
Operation Left foot operation
Gear ratio 1st 3 .000 (33/11)
2nd 1.688 (27/16)
3rd 1.200 (24/20)
4th 0.875 (21/24)
Chassis:
Frame type Double Cradle
Caster angle 26.4
Trail 91mm
Tyre with Tube
Size
Air pressure (cold tyre ):
Single Rider
With Pillion and rider
o
8-2
SPECIFICATIONS
Front 2.75 x18" 4PR
Rear 3.00 X18" 6PR
2
Front 25 psi (1.75 Kgf/cm )
2
Rear 33 psi (2.25Kgf/cm )
2
Front 25 psi (1.75Kgf/cm )
2
Rear 36 psi (2.5 Kgf/cm )