hi and welcome!!!
These carbs aren't easy, need to disassemble down to every last nut, bolt & individual component. Scrub everything including hidden secret passages with PEA-based fuel-system cleaner (spray "carb cleaners " no longer work due to removal of chlorinated compounds). Ultrasonic soak everything, micro soda-blast, set float-levels, sync.
Search for "clean carbs ducatiman" for procedure and photos to get carbs factory-fresh clean. I usually send them to Gordon @
https://completecustomcarbs.com since he does better job of restoration than any human can possibly do.