Mrbb is correct, the upper bushing on all Honda's should be greased. The bushing has a hollow specifically to hold grease. It does mention greasing in the FSM.
I would advise to use a waterproof grease (not all grease is waterproof, contrary to common belief)!
I would advise to use a waterproof grease (not all grease is waterproof, contrary to common belief)!
