Where is the fuel filter located on a 1986 Mazda B2000 pickup?

On the '87 B2000 the fuel is under the hood, on the right wheel weld. It's white--fuel line comes in: goes out. If not there, look around the fuel tank. I have an '84 B2000 and the fuel filter is directly in front of the driver's side rear wheel above the frame rail as it curves upward towards the rear. It is a small white canister with in/out ports sitting in a wire holder. I looked under the hood along the left (driver's side) wheel well and it's not there on this model.