Over the winter I rebuilt my minigp crf100. I had a pretty janky catch can prior so I wanted to make a better one. This is by far the best one I've made so far. I got this sweet alu spray bottle on amazon. I tapped 2 little dents in the upper quarter of it and drilled 2 holes for these 90° hose barbs. Then I welded a liitle u shaped guy onto my frame, wrapped the bottle with a little intake hose and then hose clamped it on. Best part of the spray bottle is all you gotta do is rip off the spray mechanism and bam, the top is vented!