Even more interestingly Peter, Is that the Luxus models of the 250/251 and the non-luxus (non injected oil) have the same size main jet according to the factory manual! Or at least, no information regarding any difference between the two are mentioned.
That said. I never did touch my jet. If i’m on 130, i’ve been on 130 for 20k miles 🙂 It’s what? 2% less fuel?