When it comes to lubricating a motorcycle speedometer cable, it's generally recommended to use a specialized cable lubricant or a light lithium-based grease. These types of lubricants are designed to provide good lubrication for cables while also offering protection against moisture and corrosion. They typically have good adhesive properties to ensure they stay in place and reduce the chances of the cable binding or seizing.
It's important to avoid using heavy greases or oils that can attract dirt and debris, as they may lead to increased friction and hinder the smooth operation of the speedometer cable. Additionally, be sure to choose a lubricant that is safe to use with the specific materials of your speedometer cable (e.g., metal or synthetic).
When applying the lubricant, disconnect the cable from the speedometer assembly and slide it out of the housing. Clean the cable with a rag or a mild solvent to remove any dirt or old lubricant. Apply a small amount of the chosen lubricant to the length of the cable, and then slide it back into the housing, making sure it moves freely.
Always consult your motorcycle's user manual for any specific recommendations or instructions regarding the maintenance of your speedometer cable, as different manufacturers or models may have unique requirements.