Hobbit Exhaust Removal

Bradley Barrus /

I have 1983 Honda PA50II which needs a replacement exhaust that I've already ordered from Treatland (along with new studs/nuts/copper crush gasket). I've removed the muffler hanger bolts (2) and both header pipe studs/nuts at the cylinder. The header pipe slip-on flange is free and separated from the cylinder but the header pipe is badly corroded and frozen into the cylinder's exhaust outlet. I can't tell where the old crush gasket is located.

Is old gasket between the header pipe-end and the cylinder outlet or does the gasket surround the outside diameter of the header pipe and get crushed beneath the slip-on flange? How do you separate the old exhaust header from the sylinder?

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