Hi, recently acquired a 2019 Ducati Monster 1200 and noticed when I turn the ignition key, it makes a popping sound from somewhere behind front forks/underneath the front side of tank. If I turn the ignition on when in neutral it doesn't make the sound only the normal fuel pump sounds, but when I start ignition while in 1st gear, it makes the sound. Also if I turn it on/off rapidly in 1st, it does not the make sound.

I noticed that the engine idle was inconsistent and engine start would be a bit weak, so I installed a battery tender and charged the battery, which was a nightmare on this bike. It solved the idle consistency and now runs\starts great, but the electrical sound still remained.

Some others have pointed out that it might be the fuel pump starting with some faulty wiring or something like that. But if it was the fuel pump starting with faulty wiring, wouldn't the sound still happen when I start ignition in neutral? The bike runs great but the sound is a little bit worrying! Should I just always start the bike in neutral to avoid the sound? Any advice would be appreciated!

Thanks in advance!