1986 TRX350 oil leak

Hey everyone. Just got a 86 foreman for next to nothing. I didn’t get around to messing with it yet, but the guy out oil in and started it so I could at least hear it runs good. Its pouring oil pretty good out of the crankcase gasket. My question is, do these gaskets just go? Or is there a problem with the crankcase cover? He said it just started leaking one day. Its coming out of the top seam of the cover.