Any trick to removing the gas cap from the gas tank? It looks like a "pin" that I should be able to tap at one end, just like the pin that holds the carb floats. I successfully rebuilt the CV carbs and those tiny pins came out easily. Any ideas? Also it looks like a rivet that secures the old dried up cork gasket to the cap. I have a new gasket and rivet ready to go on but I need to remove the cap and then remove the rivet first. Any ideas would be most appreciated. I am making slow progress with this restroration thanks to the help on this forum.
What year and model? I presume you're talking about the tanks prior to the late model '76, the 6.3 gallon tanks. Duane has a discussion at the bottom of the page about the flip cap.
For removing the cap from the tank, just remove the pin with the cap open, it should go out easily with a hammer.
It's much more difficult to remove the pin of the gasket which is in the cap, it's hardly pressed in its place. You can cut out the pin, drill a new hole and put a parker screw instead of the pin.
A bit off topic but my 71 has a locking gas cap. I would really like to get a key for it. Is a locking cap stock for the large 71 tank? Anyone have an idea on where a key might be obtained?
A locking gas cap was an option for the /5s. You might check with this website for keys - http://www.motorcyclekeys.com/. Or try and find an old-fashioned locksmith.
I just received a new gas cap gasket, searched all the forums and everywhere else to see how to remove the old seal/gasket and found a couple of suggestions.
I went out to the shop, removed the gas cap from the tank...used a piece of old t-shirt (rag) to protect the cap's chrome surface, grabbed 2 medium sized spring clamps to press down (compress) the old sealing ring/gasket...held it down quite necely. This allowed a small space between the rivet and the tiny washer under the rivet head...with a small chisel pinch, very gently tapped around the area between the rivet head and washer, when there was a little more space I used a small set of needlenose vise grips and slowly, gently twisted (while pulling) the rivet. Popped right out with no damage to the rivet.
Now, I can either tap the rivet back in, or tap the hole and use a small machine screw (as suggested in other posts)
Hope this helps anyone trying to change the gasket/seal.