So on my new to me 320TT, 0 SMOH 582 grey that I commence break-in on, I bleed the rotary valve lube system – unscrewed the opening above the water pump, hand propped the crank a couple of revolutions, next glance at what was a full reservoir and see its complete empty. Where’d all the oil go? So I top it, run the motor for 15-mins, and there’s no perceptible oil usage. Is this normal?