Posted on ducati forum:
Just because I did not want to leave this topic without an outcome, here is the tank after (home remedy only):
* Filled the tank with water, 1 tea spoon of baking soda, vinegar. Left it for 5 hours and rinsed it with a hose. I thought the result of it was fine but when it dried, it was still super dirty. In addition, I discovered that the bottom of the tank where I thought there was a previous anti rust treatment applied, was instead a thick, more than stubborn layer of gummed old petrol. Nothing worked on removing it so I had to soak for another 5 hours the tank with vinegar and soda. This time I used a jet wash to clean it and also a plastic tool I used to scrape the gummed petrol. A lot of swearing, sweating and cuts on my arms but this is how my tank is now looking. A mega thanks to Sev who kindly assisted this frustrated- low knowledged Italian (me) in reassembling the fuel pump and also changing the fuel lines.
Bike is now alive and going amazing
