Hey Schrabuerfreunde, I hope to meet someone who knows each other here. I have a Yamaha XS400 4g5 built in 1980 with 38 hp. The machine stood almost 20 years in the garage, but has jumped directly. After cleaning the carburettor, the motorcycle no longer takes any gas. Gas levers completely twist through do not bring the bike over 2000 revolutions. To the background: carburettor was cleaned and the nozzles also looked very good. (nozzles also looked very good) The machine was throttled from 27hp to 38p S. The question now arises to me whether no suitable nozzles were installed during the dethrottle. Main nozzle 125 air nozzle 150 needle position to 2 (at all other stages they do not start) No-load mixing nozzle has been tested for several positions (without success) Seals have been tested, no false air is attracted Can anyone help me?