Originally Posted by just jeff
Don't worry about the crankcase vent hose being disconnected. It vents the ring blow-by to atmosphere and the flow is OUT of the crankcase so there is no issue. Before there were emission concerns, crankcases were vented directly to atmosphere but now are routed into the airbox/air intake so the crankcase gasses are burned in the engine reducing pollution.
Thanks Jeff, still, it spit out quite a bit of oil!