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Buell Motorcycle Forum » Old School Buell » Archive through April 15, 2010 » X1 Misses at highway speed « Previous Next »

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Adsva83
Posted on Tuesday, April 06, 2010 - 08:43 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I have a miss in my X1 when I'm cruising at highway speeds. I'll be cruising on the interstate at about 80 and the bike will have a real quick "hiccup" and then continue to run normal. On a hour trip I would say it does this three or four times.

It's so short that I'm thinking that it's the fuel filter needing replaced. I looked on Al's website but couldn't find one. Is this a part that is standard that I can get at Autozone, such as the O2 sensor is a standard part.
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Cyclonemick
Posted on Tuesday, April 06, 2010 - 09:03 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

You may have small intake leak, I would check that first!l
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Adsva83
Posted on Tuesday, April 06, 2010 - 09:59 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Which intake seal is the one that needs replaced? The seal where the intake mounts or the seals on the throttle body? I think it does need replaced because that seems to be a common problem. If I am at idle and crack the throttle really quick it dies as well, a little more gradual throttle and it is fine.
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Preybird1
Posted on Tuesday, April 06, 2010 - 11:05 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I would do them all, Including the throttle body seals. Very easy to do but not fun! A 90 degree allen wrench cut off 1" will work
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Kalali
Posted on Tuesday, April 06, 2010 - 11:13 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I think there are a total of four seals; one between the intake nose and the TB, one between the TB and intake manifold, and two, one on each side between the manifold and the heads. The first two were a little pain to remove when I had to replace my TB.They just didn't want to budge.
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Adsva83
Posted on Tuesday, April 06, 2010 - 11:22 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I'm buying a new intake soon and it sounds like a project to do when I install the new intake. I'll have to pick a rain soaked weekend to do it.
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Natexlh1000
Posted on Tuesday, April 06, 2010 - 01:16 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Mine has done that since I bought it some 80,000 miles ago.
If you stay off the highway, it doesn't do that but if you stay on the bike sort of gets bored and farts like that.
Sometimes with a bang on the muffler.

I just decided that it doesn't like the highway.

I think it's related to the way these bikes go about learning with closed loop.
If I drop the speed down every now and then it seems to do it less.

Mine has a loud pipe, forcewinder, and a race ECU.
I've tried various things like putting a stock muffler on but it just made it run doggy and still do the same thing.
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Texastechx1
Posted on Tuesday, April 06, 2010 - 01:41 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

my 02 does that every now and again at highway speeds. its your bike learning a new A/F, a light quick cough is it resetting while running.

try going from a high elivation to a lower elivation in a matter of miles, it will really kick! LOL


EDIT: I know i miss spelled elivation... i just don't care. : D

(Message edited by texastechx1 on April 06, 2010)
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Kalali
Posted on Tuesday, April 06, 2010 - 02:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Interesting you mentioned the O2 sensor. Sometime ago my bike used to do that every now and then at highway speed and I went in and changed the "Open Loop Learn Enable" setting in the EEPROM Config page in ECMSPY (I disabled it) and it stopped doing it. I didn't think of until now. Something worth checking. Of course my bike never had a problem dieing when giving it a quick twist on the throttle.
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Mmmi_grad
Posted on Tuesday, April 06, 2010 - 08:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

i have experienced or just noticed it on big fast highway trips a couple times. I dont think its the seals as the last time it happend the seals were in for awhile and checked good. I think its the ecm just doing its job.

However 3 or 4 times in one trip would cause my wrenchs to fly. Or something, it may depend on where you live, changing elevations.

agree with nate and tex.
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