it's my Fazer in Scottoiler's photo of the grey adaptor. I only fitted it last year when the black one split and I thought it would be an easier fit with the larger adaptor. The black one had been on for years, i hadn't thought it was the wrong size and, until I spoke to Scottoiler, neither had they!
Providing the black one has sealed the spigot there should be no damage, so no need to panic.
Providing the black one has sealed the spigot there should be no damage, so no need to panic.