Hi Sami,

there is the possibility of the engine on the XV1100 TR1 rebuild. The whole thing is very expensive and not really suitable for amateurs. Sepp Koch builds every now and then to engines, I mean but that he does not have time at the moment to do so. The performance data are not exactly known to me, but there is a noticeable increase significantly felt. In Germany: The mill runs like hell cat .... .. If you just write to Sepp times here in the forum interest.
Excuse my English, which makes the Google Translater for me.

Greeting Willi