If your bike won’t start, and you can’t hear the fuel pump whine when you turn the ignition and kill switch to “run” you probably have one or two bad fuel pump relays. They are notorious for going bad on these bikes. They are both required for the pump to run. To make matters worse, they can funtion intermittently and drive you mad or leave you stranded. Even if they both “click” one might still be bad.
Bottom line, if your fuel pump isn’t whining, start by replacing your fuel pump relays. They are the two black boxes located right under the seat. The OEM replacement part from Ducati is a Bosch 120 65 115. It is a simple 12V 30A SPDT relay, just like you find on car headlights. Ducati will want around $30 for one. You can go to any auto parts store and find (I had to ask at the counter) a generic replacement, as long as it is 12V and can handle at least 30A. They should be under $10 each.
Relay sizes are pretty standard, and the generic replacements will even fit in the rubber holsters under the seat. The pins are oriented such that you cannot install the relay incorrectly. Since we already know the Bosch parts are failure-prone, you’ll suffer no loss of quality by going with a generic replacement.


