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Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Troubleshooting (Poor Starting/Running/Handling/Ride Issues) » Archive through February 28, 2007 » XB12S Fuel delivery problem? « Previous Next »

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Eat_a_duc
Posted on Tuesday, February 28, 2006 - 10:50 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I was riding my favorite steep and VERY twisty road when the engine lost power and began lurching like it was running out of fuel. I stopped the bike and let it sit for a couple of minutes before attempting to re-start. The fuel pump sounded a bit odd when I armed the ignition but the engine fired up. I know I was a bit low on fuel but the indicator light never came on (still had 1.3 gal. left in the tank) and the pump sounds normal now. If I have the bike on some heavy lean angles with only a gallon of gas in the tank will the engine/fuel pump lose fuel? Could this be a bad fuel injection pump? }}
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Sparky
Posted on Wednesday, March 01, 2006 - 04:16 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Did it do this pointed uphill or downhill?

Maybe the tank vent is not venting properly?
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Eat_a_duc
Posted on Wednesday, March 01, 2006 - 05:00 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I was climbing uphill when it cut out. I did open the cap on the tank and did not hear any vacuum noise from it. I will look in the shop manual for the vent line. Good idea...thanks.}}
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Blake
Posted on Wednesday, March 01, 2006 - 06:42 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I've only heard of prolonged hard braking causing fuel starvation issues. Leaning as you traverse a curve should have no significant effect.
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Eat_a_duc
Posted on Thursday, March 02, 2006 - 12:33 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I ran the same road today on a full tank of gas, mellow at first then got after it... No problems. I dunno. I have to take the bike in for a recall on the horn wiring harness and will have them plug into the machine for a test. Fuel pressure test might be in order as well.
Had a great time though... love that road.}}
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