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Buell Forum » XBoard » Buell XBoard Archives » Archive through September 18, 2003 » New XB - weird idle? « Previous Next »

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Signguy
Posted on Wednesday, September 10, 2003 - 05:41 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Took my new XB9S out last night for another 80 miles (Total now 208). I'm trying to get up to 1,000 miles in 1-2 weeks. The last half of my ride was varied engine speeds on a local highway with a 50mph speed limit and lots of traffic lights. I caught a good 4-5 miles without any red lights so I kept varying my engine speed by cruising between 45 and 55. When I finally caught a red light I came to a stop but the engine stayed reving at 2,000 rpms for about 20-30 seconds. The throttle isn't sticking anywhere and it seems like it might be a feel injection issue. (?) Any ideas?
Also, do all of these motors take so long for the revs to drop when you blip the throttle at idle? I know its apples to oranges but my friends CBR drops the revs back to idle like instantly after you stop giving it gas. Mine just kinda winds down very slowly.
Thanks!
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Apex1
Posted on Wednesday, September 10, 2003 - 08:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Most likely that your idle adjustment is set too high.
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Signguy
Posted on Wednesday, September 10, 2003 - 08:15 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

It normally idles at a little over 1,000rpm and this particular problem only happened once so I think the idle is set ok.
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Apex1
Posted on Wednesday, September 10, 2003 - 09:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Both my X1 & XB have demonstrated similar systems when the idle adjustment was set just a little too high. Seemed to happen in conjunction with max or near max operating temps, never cold.
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Signguy
Posted on Wednesday, September 10, 2003 - 09:36 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Thanks. I left the owners manual at work today....what should the idle rpms be set at while warm?
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Dmuz
Posted on Wednesday, September 10, 2003 - 11:16 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

It should not be doing that. My 9 has always idled just below a 1000, since the day I bought it.
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Dutchie
Posted on Thursday, September 11, 2003 - 03:34 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Mine, did exactly the same. Idle seemed to hang around 2 000 rpm randomly. Told HD Jhb about it when it went if for the 1 600km service. They fixed it by 'calibrating' the TPS.

HTH
Dutchie
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Darthane
Posted on Thursday, September 11, 2003 - 06:15 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Sign,

The recommended idle for a XB9 is 1050RPMs. Your TPS should be reset at the 1,000 miles service anyways, I wouldn't bother paying someone for it now. In fact, my bike does this quite often, and it's more pronounced immediately following a TPS reset. The AFV needs to 'relearn' itself. The most often recommended way to do that that I've seen is to get on a highway and run at 4000RPMs for 10-15 minutes...give it a good, even sampling to map from.

Bryan
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Signguy
Posted on Friday, September 12, 2003 - 01:14 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Thanks. I'll wait for the 1,000 mile service and see what happens. AFAIK, I'm not supposed to "get on a highway and run at 4000RPMs for 10-15 minutes" during break-in. Shouldn't I be varying my engine speeds?
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Darthane
Posted on Friday, September 12, 2003 - 06:36 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Well, you're probably over 300 miles as I write this. I really don't think 60 miles of even throttle riding's gonna hurt anything. break-in is another subject of great debate as it is. If you're comfortable trying that to knock the AFV into alignment, go for it, if not, finish the break in, then go for it if it hasn't cleared itself up by then.
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Signguy
Posted on Friday, September 12, 2003 - 08:44 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Just passed 300 miles last night and its still the same. What does AFV stand for anyway?
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Darthane
Posted on Friday, September 12, 2003 - 09:22 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Air/Fuel Value I believe. Could be mistaken.
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Signguy
Posted on Wednesday, September 24, 2003 - 06:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Saleman at the dealer just called to say they "replaced the computer" and it runs perfect now. They can't find the paperwork and everyone in the service department is gone for the day. So, I can't pick it up until tomorrow. It figures the weather is about as perfect as it could be tonight..
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