Okay, boys and girls. listen up.
I was working under the tank this weekend, I had reason to uncouple the quick disconnects. After I put the tank back on I noticed the odor of fuel in the air. I looked closely and there was a drip, drip, drip of $4 per gallon petrol coming from the quick disconnect. Uncouple the pair, the drip stops. Turns out the drip was caused by a deteriorated o-ring in the male connector. I took the o-ring off my old plastic connector (Previously replaced with a metal one) and used it. Drip stopped. My metal connectors are the ones sold by the Ducati dealer back around 2005.
I think it would behoove us to have a spare FUEL PROOF o-ring handy. Most of the ones in service are now approx 10 years old. They are also subject to mechanical use/abuse when uncoupling/recoupling the quick disconnects.
Does anyone have the specs on the o-ring. My local auto-parts store has a mult-pack of several different sized viton o-rings for about $20. A bit overkill when I need just one of a specific size. The parts diagram does not list the o-ring as a separate part. It just has the entire fitting.