Back to my backrest.............. it is getting worse!
I tried to adjust it, by pushing it forward................. but now seems to have a part jutting out, like the seat is really falling apart.
Questions:
1 - Can backrests on these be taken off, taken apart, and repaired?
2 - Is it a costly item to replace (junk yard)?
3 - How do I get it off?

To restate my problem - maybe a illustration will help:
Backrest is like this: \_ ; I want it like this: L.
Note that as I said above, now there is also a little lump sticking out about shoulder height.
Thx for any help.