Fuel tap sealing

[Ferg3]

I use the push/ pull taps ("Enots"?) on my pld Matchless motorcycles and they work OK if the cork seal fitted is a good one (soak in hot water to rejuvenate). However, I replace my real cork corks with ones cut from the newfangled plastic type wine bottle corks. Slice off the correct thickness, trim to match correct diameter and install the hole centrally using a hot needle or wire. Lasted 12 leak-free years and counting!