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Buell Forum » XBoard » Buell XBoard Archives » Archive through July 15, 2008 » 08 XB12's Redline « Previous Next »

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Deks69
Posted on Wednesday, July 09, 2008 - 05:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

They moved the redline from 6800 rpm to 7100 rpm's on the 08's. Any Idea what they did to do this? And would it be possible to change my redline to 7100 on my 06 xb12r without any issues or doing anything to the motor? Im constantly hitting my rev limiter, and thats where it really seems to start opening up.
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Xl_cheese
Posted on Wednesday, July 09, 2008 - 05:10 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I think they changed the crankshaft.

you can increase the rev limit to whatever you desire through ECM spy, but I wouldn't do it.
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Mesozoic
Posted on Wednesday, July 09, 2008 - 05:15 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

The crank, oiling system, and a few other major items have been upgraded for '08, hence the increased redline.
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Badlionsfan
Posted on Wednesday, July 09, 2008 - 05:24 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Set it at 9500 rpm! It'll run like hell, for a little while.
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M1combat
Posted on Wednesday, July 09, 2008 - 05:53 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

They increased the size of the rod journal.


The older style will stretch the big end of the front conrod in high RPM high heat conditions.

You can install an '08 crank in an older case.
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Mesozoic
Posted on Wednesday, July 09, 2008 - 06:32 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Is it true that this engine is using roller bearings inside instead of regular oil film bearings? If so, which ones are oil film and which ones are roller?
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M1combat
Posted on Wednesday, July 09, 2008 - 07:19 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I think just the crank bearings and the bearings in the trans are rollers?
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Deks69
Posted on Thursday, July 10, 2008 - 12:00 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Set it at 9500 rpm! It'll run like hell, for a little while.

Im not trying to destroy my bike, was just wondering how they got the redline higher. And looks like I couldnt safely do it. Smartass buell rider. Should have just went jap! NOT!!!!!!!
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