... something was drawing power; it's then I noticed the clock was staying on with the ignition switched off; I can't say I have ever noticed that before, so I took the clock fuse out ....
With the clock fuse in, one power wire for the clock is, as far as I know, connected directly to the battery, with no switch intervening. That keeps the clock's digits displaying the time but does not allow adjusting the clock with the ignition off. You can check for normal electrical clock draw by:
Turning off the ignition;
Disconnecting one battery cable;
Measuring the "leakage current" by connecting the leads of your electric meter (set on DC amperes or milli amperes), one to the vacant battery terminal, and the other to the disconnected battery cable end.
Normal "leakage" with the fuse installed is about 1.1 milli ampere.
Normal leakage with the clock fuse out is down around 2 or 3
micro amperes even on an ABS model; it is basically too small to measure on a Plain Pan.
Have you told us yet whether there are other add-on devices also connected to your battery?
(I think all of the Pan/ST1100 service manuals talk about measuring leakage current.)
Strange, my other pans, the clock switches off with the ignition, so … are they meant to stay on and my others have a fault…?
Its an ST1100; my other 1100s, the clocks switch off with the ignition....
On those other Pans, is the time shown when the ignition is turned on the
correct time?