First off, hi! I am a new owner of a 1994 Goldwing 1500 SE. I just purchased today, rode home, and was checking the brake fluid to see if it needed to be topped off...when I saw this curious clear tube near the rear master reservoir. It doesn't appear to be fluid related as it is (from the picture pretty clear). Does anyone perhaps know what this tube is for? I have checked the owners manuals online and videos for battery replacements, but didn't see this tube. location, when I look down it appears to feed near the passenger foot pedals. Please and thank you for the assist!