Loss of carb damper oil

["Stuart Thompson" <stuartt@tlthompson.com>]

Hello,

My '74 TR-6 w/original ZS carbs recently began losing the damper oil.
I have to top off each time before I crank it up. It runs fine so I am
assuming
it's time for a carb rebuild kit?  Is there a recommended viscosity for the
dampers? I've been using regular 30W. Thanks for any advice you can offer.

Stuart Thompson
Dallas, Texas