So…it is fueled. Normal it needs 4.5 liters. Sometimes I refueled but 5.5 or even 6. It stands quite a lot.Can it be that with the heat evaporates so much fuel ?? By driving not to explain. Then driven: must say 500 cubic and 5-6 sec on a hundred are nevertheless a word. To me that is enough, beginner bike to or from. Drive them in the 5th year and certainly still three. Or longer. Much helps a lot. Can you always say. ” 30 years ago a 500er was a sharp gun”. That my life after more than a few hours no longer starts (if carburettor is not filled up again) is then probably really on the other fuel today like me “Motorrad” wrote on reader’s letter and printed off. Also there printed but further unresolved, that one should refuel after 200km. Because reserve never goes .All usual things (petrol valve, pollution, connection right ? , error also without petrol filter there) cleared 100 percent. Also lies clearly at the filling level. There is only a narrowing of the gas hose. So in the part what goes on the carburettors. Only he had the carburettors in the workshop up and there allegedly also found nothing. Should you still not be able to find … apparently. Tanks always very early.