(Suzuki GS 500 E)

Hello everyone, am currently buying the GS 500 E from my cousin. Year of construction should be ’91 or ’92. Was today at the TÜV with the papers, since in the vehicle letter there is once a registration with 20 KW, one with 34 KW and a 25 KW, however all three are crossed out. In the field comments is now still a non-coated entry with 25 KW at 8000 upm. However, now the problem is that the motorcycle is open, so 34 KW has, but only the 25 KW one. I still have to say that the motorcycle has been registered since 2004. The good guys from the TÜV now said to me that I need to register the 34 KW, an expert report that they really have this performance, but they can’t tell me where I get it from. I hope you can help me now! Thank you!