argonsoon

I have an 84 subaru GL-10 that i love to death but cant seem to fix its idling problem, On cold starts it does just fine (most of the time) however once it gets warmed up it refuses to idle correctly and just dies on me, i end having to switch it into nuetral at stops and keep the RPM's up with the gas. Its a really annoying problem. can anyone point me in the right direction?