Mini Chopper Manual

What type of lubricant Mini Chopper Do I need my son?

My son recently purchased a Mini Chopper Motor Sports peace. It is 49cc, 4 stroke with automatic clutch. It has 3 ports: gas, motor oil and transmission fluids. Because he bought second hand, which did not come with a manual user. Can anyone tell us what kind of transmission fluid to be used? Thanks in advance. Lubrication of transmission is what I'm asking. This is not China is a clone and not 50cc. I know how to check oil, thanks … I am also fully aware of what a test strip.:)

… Lubrication: motor oil 10W-40 Engine / Trans 90W gear oil, transmission. try to

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