I've had her since 2010, this is the second engine. It's always run that way. Runs nice and cool on the coast by Lou and Mike...
New engine has TA Aluminium Heads, too. Old one was Champion Irons, if that matters.
Had the same issue on my '86 GN WAYYYYYYYY back in the day. A wacky no start, that if you let it sit for 10-15 minutes, would start right back up
Turned out to be a faulty crank sensor.