Someone left a comment on one of the posts here, inquiring as to why I have seemed to stop posting.
The answer is very simple, although the solution to my troubles is likely to be not so simple. Thumper is out of commission at the moment. Indisposed. Broken down.
Not mechanically, I hasten to add. No. It's the dreaded electrics.
I don't know much about the mysteries that are electric. Thumper just cut out and died and is bereft of all power. The battery appears to be OK so I presume something shorted out and remains so. There is no life in him anywhere.
Danish winters are remarkably cold, even when they are mild, so spending hours in the shed is out of the question for the moment. As soon as the weather warms up, I'll be on to it.
I have no idea where to start.... this will be a long process.