I'm working on cleaning my YF 2101s that has been sitting since 1995 and can't seem to be able to get the accelerator pump to come out. I've removed everything else and let it soak for 3 hours in mineral spirits when it wouldn't budge I soaked it another 3 hours in purple power degreaser. That gasket just doesn't want to let go. Is there anything else I could try? Should I just let it soak for several days in mineral spirits?

Thanks