Yamaha QT50 Owner's Manual page 36

Model QT50G
Battery capacity 6V. 4AH
Generator system Flywheel magneto
Spark plug
BP4H S.
Carburetor
VM12SC
Air cleaner Oiled foam rubber
Transmission:
Primary reduction system Gear
Primary redu ction ratio 63/ 33 ( 1.909)
Secondary reduction system Gear (Shaft drive)
Secondary reduction ra tio
19/15 x 57/10 (7.220)
Clutch type
Wet. centrifugal automatic
Steering: Caster 25°
Trail
75 mm (2.95 in)
Tire size: Front
2.00-14-4PR
Rear
2.25-14-4PR
Suspension : Front Telescop ic fork
Rear Unit swing
-37-