[SpudRider]

Originally Posted by Inroads

As I see it The separator does its job as described and allows vapors by into the air box until high RPM's.In that scenario Maybe that is why the stand pipe is there to collect the solids that accumulate at High RPM's.Without the liquid standpipe than the air box could become over saturated with raw fuel instead of vapors.We may be all overthinking this one.

Of course, you are entitled to your opinion, but I must disagree. The oil separator is not designed to capture combustible fuel. It is designed to capture contaminants from the oil, and to pass gas fumes to the air box. It is not good to leak combustible fuel into the environment, nor it is not safe to collect combustible fuel in a tube near the engine.