Post Master General
Join Date: Apr 2012
Location: Bowling Green, VA
I Ride: '09 ZX6R
My guess is that the pump has an internal short. It's obviously a bad idea to direct wire it without some sort of fuse in line to limit the amount of current that can flow.
not knowing anything about the bike, the pump, or the wiring that an unknown party has jacked up, it's tough to tell you what to do to fix it.
First thing I'd do, is stop shorting out the battery. It's possible to generate enough hydrogen gas to make an explosive out of it. filled with acid.
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