Hey guys, just bought a 73' tx500 for my first bike, and ive been restoring it. It was sitting for about 13 years. I seem to be able to find all the parts i need except a reasonable oil filter. I found this site in my searches for a solution and read about the adapters. Ive tried ebay and NW parts already. NW has original filters i believe but they run around 30$ and im not sure how many are available. There's also one on ebay but its 70$! Im looking for a more permanent solution. Does anybody know if any of those adapters or another solution is available anywhere? Any help would be appreciated! Thanks!