every time i went over a bump or accelerated hard it was moving the battery and cutting the fuel pump out...
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it was this -

Good work finding thatbenny hedges wrote:no the broken + terminal was killing the pump (and power commander) every time i went over a bump....
cos i had fitted the storm battery, its a bit bigger than the sp battery and i couldnt fit the cover that secures it down.
i think with it jumping about a bit it had wiggled the terminal to the point of failure.
i didnt see the broken bit as it was hidden inside the rubber cover and was making contact when the bike was stood still...
only noticed it when i went to fit the original battery back on!