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Buell Forum » Quick Board » Another part bits the dust.... S1138.1AAhttp://www.badweatherbikers.com/buell/clipart/sad.gif « Previous Next »

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651lance
Posted on Thursday, October 05, 2017 - 01:42 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Just a heads up to all the XB12 owners out there.

I just confirm with with HD that the S1138.1AA Exhaust Valve Actuator has been discontinued and they don't have any more in stock and will not be getting any more. This part was on back order for the last 60 days and it sounds like the manufacture didn't want to make it anymore.

I check with HD site and it doesn't show any dealers having them in stock.

Don't shoot the messenger.
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Pwnzor
Posted on Thursday, October 05, 2017 - 02:31 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Here's the solution
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Hughlysses
Posted on Thursday, October 05, 2017 - 02:56 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

If you like your stock exhaust, here's another solution:

http://www.buellxb.com/forum/showthread.php?52942- Disabled-exhaust-valve-actuator&p=587824&viewfull= 1#post587824

Adapt a nearly-identical actuator used to work the intake manifold butterflies on some auto engine. The good news is the auto part only costs $60!
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Natexlh1000
Posted on Thursday, October 05, 2017 - 03:47 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Oh man! I was just about to start a thread on this.
I saw that my dead servo looked reeeely a lot like the servos I have in my Dodge heater ducts.
I do not have $185 to spend on a thing that makes the bike barely run differently.
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Hughlysses
Posted on Thursday, October 05, 2017 - 05:16 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I do not have $185 to spend on a thing that makes the bike barely run differently.

According to Ross Daigle, “removing the actuator and tying the valve open will literally drop 15 ft-lbs at 4000 RPM. I've done it on the dyno.”
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Tootal
Posted on Thursday, October 05, 2017 - 06:09 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Your better off just leaving it closed. I rode mine with the cover off so I could see when it opened. If I was flogging it at WOT it would open occasionally otherwise it didn't move.
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Ducbsa
Posted on Friday, October 06, 2017 - 01:49 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I was able to buy a used actuator when mine failed. The old one had an integral cable anchor, so I bent up an aluminum one for the replacement.


anchor
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Phelan
Posted on Friday, October 06, 2017 - 03:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Total, at WOT, it opens at ~1500, closes at 3100, and opens again at 5100. Actual operation starts earlier than that to account for the time it takes to open and close the valve.
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Crusty
Posted on Friday, October 06, 2017 - 05:11 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

What's the Britbike in the background? It looks kinda familiar.
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