I think I already sent you a link to the German maintenance handbook ...
The needles of a Japanese Estrella in the carburretor are a bit different? But most of your 1992 Estrella is the same as in the 1994 Estrella handbook.
The Estrella is VERY fast on small winding roads because it is so handy! Others with bigger bikes have to work hard while you rush through (if you are a good rider).
It will take me a while to get used to the gearbox on the Estrella. Most of my bikes have much bigger engines (around 1,000cc - 1200cc) and are V-twins ore parallel twins, so have more torque and less need for changing gear. The Estrella requires using the gearbox a lot - something I keep forgetting!! When I have conquered that, I will take it out onto the twisty country roads to play!