Leaking fuel line at carb

I still have the originals on mine, 50 years old now and they don't leak. I am more concerned of them getting brittle.

same on my 72. Don't leak a drop.
 
FYI, I had the ss drain plugs shake loose, the plastic ones never did. I suppose engine vibration shaking the heavier steel causes them to loosen
I have seen a UTube video from a Triumph rider I believe, showing how his new Amal Premiers had defective stainless drain caps...with the threaded section visibly out of square to the cap flange head. Certainly explained why it leaked.
 
I have seen a UTube video from a Triumph rider I believe, showing how his new Amal Premiers had defective stainless drain caps...with the threaded section visibly out of square to the cap flange head. Certainly explained why it leaked.
Make your own.

Leaking fuel line at carb
 
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