I just removed my backseat from a 1987 Mazda 323 so it may be the same.
Move the front seats up and position yourself on the back floorboard facing the back seat. Locate the two metal brackets just inside the bottom edge of the the seat on either side. These are what secure two metal hooks that are part of the seat itself. Press on the seat from the front at these two locations to unlatch the hooks and then simply raise the seat up. Voila!
how do remove the brake drum on a 1991 mazda 323
The Mazda 323 of that time from had a 1600cc engine but that isn't going to effect the issue of where to get a wiring diagram. Haynes makes a manual for the 1990-1994 Mazda 323. If you have a 1986-1989 Mazda 323, you will need to get a FSM (Factory Service Manual).
The wreckers perhaps.
replace headlight on mazda sp20
Try a 1988 323
With an uncle and a hammer.
Next to the radiator on the drivers side, in front of the battery.
It is on the fender right beside the coolant reservoir.
The flasher unit on a Mazda 323 is located on the end of the flasher lever. Remove the lower steering column to bring the unit to view.
3 1/2 to 4 liters.engine oil.