Yeah going to have to come clean on the green fuel cap, was one off of a basket case vc160 that I smashed the end of the fuel gauge off because it was too long to fit into the tank, did look good with the matching green though and stopped my fuel leaking everywhere while mowing the lawn cool
Well, that wrecks everything now!

It's amazing how these stories unfold - and everyone learns from it.
Thanks to Sir Chook for the local perspective and Gadge for his research.
I continue to find connections between sewing machines and lawnmowers!
Thanks to
Lennyb and all for this interesting post.
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Jack