Hi all. Like many others previous I think I have an issue with my fuel pump. I have a 2013 Sigma Supersport and took it out last weekend but I wasn't able to get it to start this weekend. The only thing I had done inbetween was loosen the bolts to the roll over bar to fit the straps for a half hood.... I definitely tapped the bottom of the boot a few times, so it's possible I may of "upset" the fuel pump doing this. On start up the starter motor is working... however I'm not getting any noise from the fuel pump priming when I turn the key to the second position. Following many posts such as this I've gone down the list and I'm pretty sure that the inertia switch is working properly, the fuse is fine, the battery is fine and the fuel pump connector is receiving 10.5V (lower than I expected but enough). With the fuel pump connector disconnected I did a continuity test on the pins on the fuel pump between SG196 and GB148 (senders for the fuel gauge) as well as B10 (Earth) and YG168 (12v supply) both passing. I moved to supplying an external 12v power source to the fuel pump - as mentioned by John Vine in comment #13. "You could apply a separate 12v supply to the yellow/green (YG168 below) using a back-probe, or you could detach the connector and apply 12v direct to the pin in the top of the pump assembly that matches YG168. In the first, you'd be using (and thereby testing) the existing earth; while in the second, you'd need to add a separate earth to the pin corresponding to B10 below:" When completing the circuit between YG168 and B10 there was a clunking noise from the fuel pump... but no whirring noise. At this point I'm a bit stumped and have to ask if anyone has any idea what I should try next.... or is the fuel pump dead? Ben