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Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Troubleshooting (Poor Starting/Running/Handling/Ride Issues) » Archive through August 12, 2010 » 04 Firebolt issue « Previous Next »

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Maryj
Posted on Tuesday, June 08, 2010 - 05:12 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Got a 2004 XB12R that acts like it has a fuel pump problem. Cranks and idles great, once it gets to about 3000 to 3500 it falls flat on its face, like its running out of fuel. Thought it would be the fuel pump for sure so I put a pressure tester on it and it reads 50 psi exactly!!! Sooooooo...where do I go now?!
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Froggy
Posted on Tuesday, June 08, 2010 - 06:21 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
What exhaust are you running? The stock exhaust has a valve that redirects airflow to optimize mid range torque, many aftermarket pipes will give a bit of a flatspot in the power band due to not having that valve.
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