This is a general question. I run into this problem a lot and was wondering what the fix might be.
Given that I'm part time, it often takes me a couple days to make repairs. I'll open a carb up, clean it and may not assemble it again until a day or two later. The bowl gasket/o-ring is often too small at that point.
I'm assuming it shrinks as it dries out in the air. Is there a way to stretch it back out so it will fit in the slot in the carb body? Hot water soak? Oil? It appears in decent condition but I'm afraid to stretch it over fears of breaking it.
When I research it, I find solutions for the opposite problem. I seldom encounter orings that have stretched. Mostly shrunken ones.
Thanks.