Motorbike

[Barry]

No: HPFGUIDX 181422

In the chapter, The Seven Potters, it says: Hagrid kicked the
motorbike into life:
This, and other statements, indicate to me that the motorbike was
starting like any motorbike does, i.e not with magic. Otherwise why
kick start it? This, in turn, implies an electric circuit giving a
spark to the combustion chamber. Yet electricity is not supposed to
run in a magic environment. 

Elsewhere, Arthur Weasley is fascinated by Muggle artifacts. 10 years
ago, they would all have been electric/electronic. How could he have
toyed around with them without a battery or mains supply? 

The Ministry of Magic is entered through central London. What happens
to the power there?

These are minor quibbles. But I tend to think that JKR would have had
a more accurate world and a richer one if she set HP in Dickens era.

Barry