Where do you put the oil in a derbi terra 125?

On the left hand side of the engine facing forward, you will find a oil filler cap that, looks more like a grey plastic marker pen lid, which you grip and turn with your fingers quite easily. It is also a dip stick... so, with the bike standing level and upright, you can check if you need to add more oil through the hole. Go easy on how much oil you add, checking with small fills until you get a feel for the amount the bike takes, it's not easy trying to drain off too much oil in the engine...

I...must...remember...to...take...my...own...advice

Duh!Dad