I installed the Dragon Saver kit on my 2010 rmk yesterday and everything went well except......I have one odd-ball o-ring leftover from the gasket kit and have no idea where it goes? Can anyone help?? It's about the size of a quarter and there was only one in the kit. I thought maybe it went to the electrical sensor underneath the under-side of the head, but that just doesn't look right. Any advice would be greatly appreciated.