I did a rebuild on my clutch slave cylinder and I spotted this part laying on top of the heat guard, left side. I've searched the parts diagram but I'm not seeing it. Anybody know what it is? It is made out of rubber and looks like some kind of part that fits around a tube to protect or hold it in place. Bike is a 1992 Aspy. It is about 1 inch by 1.5 inche by .75 inches in size.