not being sarcastic, genuine question

[SenselessUbiquity]

I am not remotely a petrol head type.

Is there a legitimate reason why it is important / necessary / worthwhile to have one's loud stationery motorbike idling outside one's house for hours on end?

thank you

No

I'd love to know the answer. It seems to be a thing with motorcyclists (for whom I have nothing bad to say- they're usually very respectful drivers and as a cyclist, they treat me a little bit like one of their own on the road). But yeah, I'd like to know as well, for curiosity's sake.

Of course...
In his mind he is James Dean....

Now he has revved it really loudly and buzzed off. you can still hear him several streets away. It will be quiet for a bit, then he will come back and it will start up again

WHY?

Sorry I spelt "stationary" wrong. I didn't mean that his bike is made out of paperclips.

Stationery motorbike:

www.pinterest.co.uk/pin/582019951813936351/

His is stationary