All plastic and rubber items exposed to heat, pressure on road dirt, and will sooner or later degrade to the point where they are no longer effective, in this case to reduce heat and vibration going through to the carburetors. The simple answer? Replace them with new Honda items. For other items you may require, why not check out our online catalogue and 'parts list' fiche, you will be surprised at how many items you may have overlooked!
