Why does tinkering stop?
Since about a quarter of a century motorcycles - and cars - have been built to be assembled with great ease on assembly lines.
Moreover, the percentage of electronics has grown enormously since that time.
And of course a 'modern' vehicle no longer has to take the 2.500 km to the garage for a big turn that you could carry out yourself.
But the idea that the chrome cover of a Suzuki VX800 from 1991 can actually only be disassembled when the rear cylinder is off or that air filters or the last generations of carburetors from that time apparently are not designed to be removed after assembly?
That is not good for the continuity of our hobby.
Fortunately there were a lot of nice cars and motorbikes from before 1990.
And that may explain the trend towards older transport ...