When I owned four motorcycles the two that gave me joy to work on were the '93 Ducati 900SS and the '75 Moto Guzzi 850-T. But aside from oil changes, the other two, '96 BMW K1100RS and '04 Kawasaki ZX11-R got the "Visa Wrench". They simply were not fun to work on. Especially the ZX11...
Same with most plumbing jobs. I couldn't sweat a joint to save my life. 🤣
Small electrical jobs around the house, I do. I'm not afraid of electricity, but I respect it for sure.
My seldom driven Toyota goes to the dealer. They always do a good job.
If something needs built from wood though, I love it.
Audio? If it needs a soldering iron, I let a pro handle it. When my SP3a needed work on the power supply, I found a pro who worked on tube gear and he did a great job.
Happy listening...