C-Los SD
XS650 Addict
There are a few threads on here on XS750 tank mounting. They way I mounted mine was to remove the tank cups/ears on the frame, drill a hole through the frame where the cups were and use a long nut and bolt to attach the tank rubbers to the frame. For the rear mounting tab, you are going to have to bend it upwards a bit so it sits lowere on the frame.