I just bought my Yamaha rd200! The bike is not currently running, but luckily my boyfriend has brought many bikes back from the dead...anyways the only part that I cant seem to find anywhere is an air filter. When I bought the bike the filter was missing, and I have been searching everywhere for one! Some suggest by the filter for the rd250 (which one place had), but when I looked up the specs they arenĀ“t the same size, is it something I can just carve down since its foam? Or can I by foam and carve it to fit? If anyone knows the answers to these questions, or better yet where i could find one please let me know! Also i would love to know of good parts places!Thanks!!