crankbait
Regular Contributor
my valve cover on my aq120 has a vent that looks like it should have a hose connected to it. so far, on all the pictures and u tube videos, i have not yet seen a singe engine with a hose connected. i know on a car, a hose would be connected from the valve cover to the air cleaner to capture the fumes. but my sparkarrestor/air cleaner has no provision for this. or....is this just left as is, and left to vent via the boat fresh air system ??