Hi, so slow I’m going to get to the end with my GPZ 600R. The engine flapper is extremely busy up to approx. 2000u/min. Keeping the engine running very restless. Gas is not assumed to be 100%. In the meantime, the machine is jerking out while driving and trying to fold out more power. There are only small bumps. And that is when the engine is still running. Everything is very strange. So, after I have freed the GPZ from its 3 year sleep all liquids were changed. The battery and the ignition plugs were renewed. Then the carburetor was cleaned 2 times by me (without success) After that I cleaned the carburetor in a Kawa plant and had to check it again. There was also a carburetor in the ultrasonic bath for 24h and already pre-set on factory settings. In addition, the carburetor was again synchronised by a test engine. In spite of all that I also did not have the synchronised again.