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Buell Forum » 1125R Superbike Board » Archives 001 » Archive through April 07, 2010 » Idles higher in first gear « Previous Next »

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Mac_inger
Posted on Friday, April 02, 2010 - 01:58 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Maybe i missed this when i got the bike or it has slowly developed lately.

If im sitting at a light in neutral and i put in the first gear holding clutch, it just revs a little higher. Not by much but noticeable.

????
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Captain_america
Posted on Friday, April 02, 2010 - 11:45 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Blame it on the IAC!
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Gemini
Posted on Friday, April 02, 2010 - 11:52 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

normal. it's a good thing
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Froggy
Posted on Friday, April 02, 2010 - 11:54 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

It should raise the idle a tad as you start to let out the clutch to make starts easier, but it shouldn't do it when the clutch is held in.
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Mac_inger
Posted on Friday, April 02, 2010 - 05:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Gemini,..why is it a good thing ?

Froggy,..it does it when the clutch is pulled all the way in.

Cody,..so what you think is the solution?

cheers
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Captain_america
Posted on Friday, April 02, 2010 - 06:41 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Well I think it means we should meet up and go ride this weekend....
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Mac_inger
Posted on Friday, April 02, 2010 - 07:10 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Sure thing man and then you can help me move : p

so yeah moving this weekend bud, cant do it. rain check ?
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Mac_inger
Posted on Friday, April 02, 2010 - 07:34 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Any instructions on how to go about bleeding the clutch ?
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Dannybuell
Posted on Friday, April 02, 2010 - 07:56 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Does the bike go in and out of gear easily when the lever is pulled all the way in?
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Mac_inger
Posted on Friday, April 02, 2010 - 08:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Yep,.very easy. A friend suggested to bleed the clutch in case its not completely engaging when fully pulled. But i havent noticed anything while riding.
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Gemini
Posted on Friday, April 02, 2010 - 08:21 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

the rpms should rise slightly as you go from the clutch lever being fully squeezed to not quite engaging the clutch. the rise in rpms is just enough to keep the bike from lugging down too low or stalling when you are in stop and go traffic.
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Dannybuell
Posted on Friday, April 02, 2010 - 08:23 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

easy in and out suggests the clutch is OK.

the idle speed increases as you let the clutch out, that is normal.

What brand and grade of gas? crummy gas can play all kinds of tricks on your engine.
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Mac_inger
Posted on Friday, April 02, 2010 - 08:48 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

no what i mean is the idle speed increases with the clutch completely pulled in.
example: im in neutral, it idles X rpm (can't remember exactly right now, have to check on the bike and report back). Pull in the clutch and go in first gear. Standing there, still, with the clutch all the way pulled in, the rpms rise a bit. I go in neutral and let go of the clutch, RPMs go back to X.

The clutch does seem ok in usage. Just trying to troubleshoot this.

gas is Shell 91.

(Message edited by Mac_Inger on April 02, 2010)
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Dannybuell
Posted on Friday, April 02, 2010 - 09:13 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Could it be that the extra drag of the trans-clutch being 'in' is causing the ECM to respond a bit? I think clutches and transmissions appreciate being in neutral at lights etc. In the old days I did not want to stretch the clutch cable, now days I don't want to stress the hydraulics.

Is your clutch fluid clear as can be at the master cylinder?

(Message edited by dannybuell on April 02, 2010)
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Captain_america
Posted on Friday, April 02, 2010 - 09:18 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 hate moving! Wheres the new place?

Well the bike, If I'm correct, doesn't know what gear your in unless the clutch is out and it can compare the TIS to the TOS. So I dunno why the rpm would raise when in gear with the clutch in... Unless the clutch was dragging slightly pulling the rpm down and the IAC was making up for it???
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Zac4mac
Posted on Friday, April 02, 2010 - 09:32 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)


I think you got it Cap(Cody?).
The ECM knows whether the clutch is in or out, but I don't think it knows if the trans is in gear.

Zack
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Captain_america
Posted on Saturday, April 03, 2010 - 12:06 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Zac... Shhhhhhh! Haha Ya, Name Cody The Be.
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Colintornado
Posted on Saturday, April 03, 2010 - 05:04 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The ecu may not "know" what gear it is in, but remember it has a neutral switch so if it is not in neutral then it is in gear.IYSWIM.
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Gemini
Posted on Saturday, April 03, 2010 - 09:24 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

i think that you can see the clutch lever switch state by using the cluster diag mode. make sure the switch in one state with the lever fully squeezed and it changes state when releasing the lever slightly. my bike is at the shop right now for clutch repair so i can not verify if the lever state is in the cluster enabled diag or not.
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Mac_inger
Posted on Saturday, April 03, 2010 - 12:26 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ill check that Gemini, thank you.

Cody, moving downtown. Almost done,..only the real heavy stuff left now :P
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Captain_america
Posted on Saturday, April 03, 2010 - 01:13 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

That it is displayed in diagnostic mode. It's either a 1 or 0. 0 being clutch out I believe.
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Zac4mac
Posted on Saturday, April 03, 2010 - 11:14 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Gotta point Colintornado -
That IS the way the gear indicator works... don't try to do remote diagnostics while indulging in Wild Turkey 101...

I'll have a look-see when I get Loretta back. She has a fuel pressure issue now(B0087) that pops on after 20-30 mins of riding.
I think the new fuel pump I got a couple of months ago may be bad.

I have an OEM and an EBR ECM and will try both, in/out gear and clutch in/out.

Zack
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