Doesn't need to be perfect, just usable for a rider.
Rick 440-417-8094
You can use a regular cap from a fiberglass tank. Just give it a quarter turn. I did that till I found flip top one.
Dennis Jones
Rick,
I have seen a cap on a Moto-Guzzi at Mid-Ohio that looked identical to the steel tanker cap. You might want to check out ebay under Moto-Guzzi or Benelli gas caps. Lee Buffenmyer