Normally this bike and many others have a rear stand with a long pin through the back wheel. The pin is secured with a clip. I h a t e these things.........! Please do not laugh but it even happened once that I drove away in my youthfull enthusiasm with the rear stand still hanging on the bike......!!!! Everybody shouting and gesturing, you can imagine I was the fool of the day. So I decided to convert to the modern push-up stand. I chamfered 2 pieces of aluminium, tapped them 10x1,25 to take standard 1992 or so TZ hooks (4DP or 4JT numbers). But you can also use general ones from your motorcycledealer of course. Here is the rear arm:

Yamaha TZ rear arm