Cut the green foam away on the inside of the filter, then the least resistance should be through the filter, up and over the center portion, and down to the carb. Some thin rubber or card stock would direct the air through the filter if laid over the foam before the paper element is installed. But, even with all that, the foam will do a good job of filtering.
I have two of these cleaned and ready to convert. Just haven't had the time yet or found the right filter. I now have a starting place.
Joe
Last edited by Joe H; 01/07/2016 4:26 PM.