Well, at least for me, I think I've solved the issue. I adjusted my riding style. I used to use engine braking for slowing down quite a bit before applying the brakes. However, I now use the clutch more frequently and allow the engine to return to idle when slowing down. It occurs to me that the reason this reduced (if not eliminated as no oil noted as of late) oil "pukage" is due to the following:
- At engine speeds above 1000 rpm, regardless of throttle position, or why the engine is spinning at higher rpm, pressure builds up in the head/valve train area of each cylinder.
- When you use engine braking, the throttle and butterfly in the intake is closed, effectively eliminating any negative vacuum that would normally have pulled oil mist into the combustion chambers to be burned.
- When you have the throttle open at all, there is enough vacuum to evacuate the oil/air mist from the intake area inside the air cleaner, effectively scavenging any residual oil back into the combustion chamber to be burned and exhausted with normal exhaust through the pipes.
Color me whacky, but this seems to make a difference.
Ok, fire away, I have my flak jacket on.