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Buell Forum » 1125R Superbike Board » Archive through September 13, 2013 » Fuel Pump cycles when off? « Previous Next »

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Jimustanguitar
Posted on Monday, September 02, 2013 - 01:27 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I noticed that my fuel pump cycles periodically even when the bike is off. I *think* that it only happens when I shut the bike down with the key and leave the switch on. Is this one symptom of the dreaded battery drain?
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Shawns
Posted on Monday, September 02, 2013 - 07:04 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Nope, its making sure you have the fuel pressure that is needed. If it is doing it...say an hour after you shut it off, that would be cause for concern.
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Spike240sx
Posted on Monday, September 02, 2013 - 10:38 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

It keeps the fuel lines pressurized so they do not vapor lock as it all cools down
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