1983 Honda Prelude Fuel Pump?

Electrical problem
1983 Honda Prelude 4 cyl Two Wheel Drive Manual

My dad has a 1983 Honda Prelude. It hasn't cranked in about five years but his other car has broken down and now we are trying to fix it. We noticed when you spray starter fluid in the carborator it will crank but only while you're spraying it in there. So, someone told us that we probably needed to drain the gas, put new in and if that didn't work to get a new fuel pump. We did that, and we got all new filters. It still would not crank. Well, when you unhook the gas line and turn the key on, gas does not shoot out, like it is supposed to. We got to looking on the internet and it said something about a fuel filter cut-off relay or something but it's kind of expensive so we were wanting to know if we're even looking into the right direction or if we're completely off. Please help us.