Good evening dear community, I want to get a 850, I looked at one last time. 250tkm, dark green with beige full leather. The engine, a B5252SF, is a little bit of a problem. It is difficult to start and runs when it is on is very rough, tends to go out. This is however only the case in the stand gas. On short gas strokes it reacts from the stand gas bad or not at all, if only painfully turning up with ignitions. But as soon as you are over 1500U/min away and the engine once ‘rolls’ it remains constant over the whole speed band. I have read a lot of distribution fingers and petrol pump relays, but rather type on the latter since otherwise it would have to have a theoretical effect on the whole speed band (or?). Would you be nice if you would give me your advice.