yes
You have to have an engine rebuild which costs from $2500 to $4000 depending on other internals that needs replacing and labour of the shop.
There is no such thing as an 83 Geo Tracker.
Regular should work just fine. If you hear it knock a little, then use super.
It has only one in-line fuel filter.
Mounted on top and inside the fuel tank.
Yes.
Just one located near to the fuel tank.
fuel pumps on top of the gas tank screws on
Fuel pump is on front corner of block if carbureted there is no in tank pump
The fuel pump is located at the fuel tank. To access it you need to remove a metal cover containing the fuel tank and pump.
First you could try spraying some carby efi cleaner around it and then blow it out with compressed air ! If this fails a rebuild is probably in order! Hope this helps ...