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Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Troubleshooting (Poor Starting/Running/Handling/Ride Issues) » XB9s Sputtering At High RPM/Speed « Previous Next »

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Chapions
Posted on Tuesday, July 21, 2015 - 12:48 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Hello, I have recently noticed problems with my XB9s sputtering when trying to accelerate at higher rpms. Right around 3500+. I have noticed that my fan isn't running while the bikes runs and only turns on after I shut down the bike. Could it be a faulty Engine heat sensor causing the bike to overheat and cause sputtering when put through more demanding circumstances. Please let me know your thoughts or if you've had a similar problem and had it fixed, Thanks!
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Gianni312
Posted on Wednesday, July 22, 2015 - 09:58 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I just came back from a 2300 mile ride from Chicago to New Orleans and back. I have a xb9s with about 13,200 miles. I noticed the same with mine especially riding through 110 degree weather.

However, my check engine light turned and returned Code 13 - faulty o2 sensor. The symptoms of the o2 sensory is sputtering, backfire, ect. I have a race ecm, k&n filter with jardine exhaust.

The service manual lists about 13 things that could cause sputtering as well.
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Gabby_duck
Posted on Wednesday, July 22, 2015 - 06:48 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The (02 sensor ) was first thought.
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Gabby_duck
Posted on Thursday, July 23, 2015 - 02:42 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Also clean battery conections and grounds
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Gabby_duck
Posted on Saturday, July 25, 2015 - 07:29 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

O2 sensor wouldn't effect fan ops.
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Reepicheep
Posted on Saturday, July 25, 2015 - 09:40 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Sputtering and backfiring could be cam position sensor also.
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