In comparison with normal style oil catch tanks; blown by gas can be
pulled out from this model's oil filler cap. Operational loss of the
pistons and pressue inside the crankcase are decreased due to discharges
of the blown by gases. In addition, oil return to the suction pipe is
collected through the catch tank.
※ Removal of the oil filler cap can
be done without the removal of the hose and nipple.