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Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Troubleshooting (Poor Starting/Running/Handling/Ride Issues) » Help needed! Xb12r sputtering/stalling problem « Previous Next »

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Jbuchanan49
Posted on Saturday, October 31, 2015 - 07:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Hey yall this is my first post but I have been reading up on the forum for a while now. I have a 2004 buell xb12r that is running like crap. Sputtering and backfiring when I hit the throttle hard and even stalling out sometimes. I've noticed the issue is worse when the bike is warm.

Things I have done/replaced:
Ignition coil
Spark plugs
Tps reset from local dealer
Cleaned and tightened all grounds
Grounded ignition coil to negative on battery

As of now I am stumped on what it could be ! Any help or suggestions is greatly appreciated!
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Gabby_duck
Posted on Tuesday, November 10, 2015 - 06:59 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Both battery connections are snug.Pull on them.they shouldn't move at the battery. ET engine temp sensor giving erroneous readings to ECM.Faulty O2 sensor giving erroneous readings. Intake leaks, Exhaust leaks
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Gabby_duck
Posted on Tuesday, November 10, 2015 - 07:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Faulty O2 sensor, Faulty ET engine temp sensor, intake leaks
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Bffbfyn
Posted on Monday, March 20, 2017 - 12:41 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Where are the 02 sensor placed are there more then one
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Gabby_duck
Posted on Monday, March 20, 2017 - 02:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Only one, rear cylinder located a few inches from exhaust head
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