PACKING, COCK

This part does degrade over the years, especially with modern lead free fuels, and it can play havoc with your carburetor and fuel system, it is safe bet to replace this item, especially if you have to remove or replace your fuel cock anyway.
You might like to check our online catalogue for your model, here you will find many other consumables and genuine Honda parts, whether you are just carrying out a service, or completing a nut and bolt re-build.