Engine and gear oil change in a 150cc GY6 Chinese scooter

How to change the oil in your Chinese scooter!
Engine oil: 10W-40 synthetic 0.7 liters
Transmission oil: 75W-90 gear oil synthetic 0.12 liters

Torque specifications:
Oil drain plug and oil screen: 14 ft-lb or 19 Nm
Transmission drain and fill plugs: 10 ft-lb or 14 Nm

0:00 intro
0:07 oil change interval
0:36 engine oil change
2:05 transmission oil change
2:54 conclusion