Hello Honda Community. A few days ago I got a Honda CB250, Built 73 to restore. Have a lot of experience with screwdriver technology, thanks scooter and car. I would like to introduce my project here and hope that I can bring this thing back to life. The motorcycle stood about 10 years +- 3 and is in the appropriate condition. The front disc brake I got to run again reasonably, thanks to fresh brake fluid and a lot of patience. Aber, without gnashing or similar. Oil he got today also new. (10w-40) Just removed the left carburettor… and sometimes “look inside”… My face, it is really bad resin. The “resin” has a tougher consistency than honey and it is impossible to get with brake cleaner or carburettor cleaner. An ultrasonic bath will not help at first, I guess. Do you have tips and tricks on how to get this stubborn dirt out of the carburettor? Acid o .ä ? A few pictures. Greetings