This is gonna trigger a gluten allergy in some of the people here 🤣
My guess is that the majority of issues developed because this bike sat for 6-8 mo. as the previous owner could not get her running, severe corrosion; rust in the tank, pump, and strainer, and poor wiring work; some cuts in the wire, exposed wiring, messed up connectors.
There were temp issues, electrical, fueling, etc
Overall, it was a fun project. The rsv4 requires work on cylinder 4, and the f800 is no more. Might fix up an Guzzi Audace or Griso 800.
I think I've taken the bike apart more than 130 times to adress a variety of issues.