Might be lean because carbs still aren't factory fresh clean. Bike ran perfectly fine when leaving showroom floor and revved to redline without any problems. When you get carbs back to factory-fresh clean, it'll run like that again. Some tips:
- complete disassembly down to every last nut, bolt and individual component.
- scrub everything with PEA-based fuel-system cleaner. Spray "carb cleaners" no longer work due to removal of chlorinated compounds. don't forget secret hidden passages
http://n4mwd.blogspot.com/2013/10/se...-passages.html
- poke out all bleed-holes in carb-venturi, emulsion-tubes and pilot jet with matching size soft copper wire
-ultrasonic soak and micro-soda blast everything
- replace all rubbers when re-asembling: float-valves, fuel-rail O-rings, pilot-screw O-rings, float-bowl seals, even carb-diaphragms if needed
- set float-levels & wet-test
- sync carbs in bench and on bike
do search on here for "clean carbs ducatiman" for guides and photos
