hard starting issue

[blackcoupe]

Hey guys, i got a 89 sohc s13. The problem is I have hard starts whenever I start the car the first time for the day. I have to crank it 2 or 3 times before itll start, I use to prime it to get get it started, but priming doesn't seem to work anymore. Once it starts, idle is fine, and drives fine. Itll start right up if turn it off and start it back on 5 minutes later. The problem persists again though after a few hours of not driving it. Leaky injector? FPR? dying fuel pump?

Any help will be appreciated.