Geez, only 27 or 29 years before failure, guzzi cheaped out.
You have done well padawan.
Is it a service item? Yes in original form, every 10 years or if it shows signs of weeping, a bit like brake lines.
In teflon braided form, on condition.
Buy 2 teflon braided assys and do both bikes, then relax and ride.
I did my mk 3 lemans with teflon braided back in 1995, no issues as yet.
Dont forget the new copper washers for the banjo bolts.
Cheers