SC-
Are you ready for this? I have good news and good news for you, which do you want first?
OK, I'll decide, LOL. With your Badger 200 AB, there is a tiny teflon seal inside the body of the AB which can only be replaced by Badger. My guess is that it was damaged by the brake fluid. Their service dept. is one of the best I have ever seen, hope they are still. Just contact them and tell them what's going on, and they will probably tell you to ship it to them to fix. I did that three times with my old 200 over the course of 15 years, and each time there was no cost to me. You can contact Ken at Badger here, he is a member of the forums here and a very helpful fellow. Here's his email addy:
kenbadger@aol.com
Now for the second bit o' good news...
I have two of the decal you need, the thin white stripe. They are from a Superscale sheet number 48-921:
There are two of the narrow white spiral for aircraft number 1 and 2. If you would like them, I can put them in the mail for you tomorrow. I still have your addy from when you sent me those figures last year (have been hoping I could repay the favor someday!).