Or, and I don't recommend this as it will get you booted, find the next RTE & while everyone else is inside
.
I feel for you, the problem when we take on older bikes.
Looked at a place that has a lot of spares, no help there.
I think there have been a couple of posts recently about parts ST1100s, check those.
I have to use the norty corner emoji often as Kev Murphy made it for me for obvious reasons