When you do get around to cleaning the Ramair filter, don't forget to clean/oil the foam crankcase breather/filter also. Just did mine and it was pretty filthy. I have mine on an extension hose so it sits slightly above the valve cover at the rear of the engine.
What is the name of cleaner& spray oil you use, was thinking of using Dawn dish washing soap to clean, but question what oil to use. Like the idea of a spray. ThanksI've been using an aftermarket cleaner and spray oil on my Ramair for several years now also.... No deterioration of the foam.