Zoltan's Fiesta

Hi, my Fiesta was made in Spain. It only has a 957 ccm engine. Nobody knows what kind of adventures could happen with it, until I brought it in Hungary in 1999. (Sorry for the B&W picture, my scanner doesn't support the colour mode. It's blue actually.) It cost 150.000 HUF ($625 US) It was in very bad condition, the shocks were bad, one of the rear springs was broken. I had to adjust the valves, and the ignition system. After that it is quite good, although I'm not able to solve the problem of the old engine. It's a bit noisy and weak... Since I haven't got too much money to pay for repairing, I did repair it myself. Unfortunately, I've not found any manual or specifications, so sometimes I'm in a trouble during a repairing. Could somebody help me with a manual or any how-to-do instruction?

Zoltan