It appears to be a slow day, so it is time for me to ask a question about the way relay conectors are coded. The use of numbers such as 87, 85 etc puzzles me a bit, so I ask for advice from the learned group.
Where can I get a list of these codes and are they uniform in the auto / bike world?

To illustrate see the diagram:

Jeez man, they are, but where was it.....

Have a look at this Airhead site.

This is relay info for the air cooled BMW's, but I believe the info here will help.

But wait! there's more

Some more:

Here

and Here

Thank you very much Blakey and Renez. I will edit the list and see if I can put out one that is fully relevant to our bikes.