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Buell Motorcycle Forum » Big, Bad & Dirty (Buell XB12X Ulysses Adventure Board) » BB&D Archives » Archive through May 21, 2007 » My ULY Dropped the front cylinder « Previous Next »

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Evileye
Posted on Thursday, May 17, 2007 - 03:56 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

On the way to work today, my ULY dropped the front cylinder . We've changed the plugs, checked compression, checked for spark, and also checked for injector pulse, all seemed normal. Has anyone seen anything like this?
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Lowflyer
Posted on Thursday, May 17, 2007 - 05:30 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Overheat? Uly will automatically drop a cylinder if it overheats or thinks its overheating. Although I'm not sure why it would drop the one that is in the wind, so that theory may be flawed.
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Thunderbox
Posted on Thursday, May 17, 2007 - 06:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I don't think it drops one cylinder that would cause more load on the other one and over heat it. I believe they drop every second firing on each cylinder. This way both cylinders get cooled off a bit.

(Message edited by Thunderbox on May 17, 2007)
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Freyke
Posted on Thursday, May 17, 2007 - 06:23 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Check for a cracked plug!
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Treadmarks
Posted on Thursday, May 17, 2007 - 06:25 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Make sure your plug wires are all the way in the coil, and that they are not damaged or worn from rubbing the frame.
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Whitj
Posted on Thursday, May 17, 2007 - 06:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

On the way to work today, my ULY dropped the front cylinder .

How far did it fall? j/k

Take to dealer. Still under warranty? Check all wires under your seat. I've seen two XB's drop a cyl from wires that rubbed under the seat.
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Evileye
Posted on Thursday, May 17, 2007 - 07:23 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

well, just got the call from the dealer...the injector on the front cylinder is bad...that's what I had come up with from our testing in our shop...hopefully it will be back on the road by monday...
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