Hello 👋 for information I have recently changed the transmission oil in my 70c21 6 speed manual gearbox and for identification of the correct refill and drain plugs I’ve attached a picture.
DO NOT TOUCH the top bolt, this is for the internal fork to engage gears!!! I have read that some people have loosened this bolt only to find they have then had to fully remove the gearbox to rebuild.
The middle plug is the refill and the bottom plug is the drain. I thought this will help people đź‘Ť