Why is my Ducati 916 running roughly?

Q. I’ve a Ducati 916 that has been running rough for a little while. The electrics are all fine, with no dodgy relays and the bike was recently serviced with a clean bill of health.
Mick Illingworth, email

A. It’s quite rare, but 916s have been known to suffer from split fuel lines inside the tank itself which can give the symptoms you’ve described. We recommend you look into this as a possible cause before doing anything else.

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