| I am blessed. I have had both pump housing big o-ring & pipe fitting o-rings let go in the same week. Only one was my fault.
Take off old o-ring from fuel pipe union. Go to friendly local garage person. Swap it for 2 new ones. Garage person will not ask for money as he will be so happy to have genuine racing ducati part as souvenier.
My ones were all perished & cracked.
Pees petrol all over the back cylinder head it does.
Robbie | 
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