Hi, my Skygo 250 cruiser has a gauze filter but it's a pain to get out. It's set underneath the gearbox (foot brake side) right where the frame tube is and can only be removed with care as the spring which holds the gauze gets in the way. I had my first dealer service which included an oil change but when I asked about the filter I got a very vague reply. I did the second oil change and checked the filter which was pretty gunged up with bits so obviously the dealer hadn't touched it. Hope this helps, Pat