Originally Posted by A-Wind
Agreed, it looks like a beauty.
The only (hopefully) minor issue that I can see, that it is advertised with 26KW. I guess it was registered this way to meet some regulations of it's time.
I would check with some local bikers if it is possible to register this bike with full power and most importantly via what method is this bike's power reduced. Is this done via an (easy to be removed) carb mod or a different camshaft (would not be that great).
It is normal for RD03's from Switzerland. You can increase to full power by changing or modifying carb intake boots. Reduction vas done via lowered inside diameter of boots, you can just cut it out, or get new ones from Germany.