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Buell Forum » Old School Buell » Archive through April 09, 2014 » Strange idle « Previous Next »

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1250_x1
Posted on Tuesday, March 18, 2014 - 07:49 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

2000 x1 runs great idles around 1300rpm but after about 15 minutes of riding when I come to a stop the rpms slowly climb to 2000 and will stay there until I slowly let the clutch out to bog it down but the rpms just come right back up. Any ideas?
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Jordon_s3t
Posted on Tuesday, March 18, 2014 - 07:59 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Yup... same problem I have and will fix when spring finally comes to the Northeast...It's probably leaky intake seals...they cause a lean condition which results in a high idle after the bike warms..just like you describe..
Check out American sport bike for the seals and the allen wrench tool to make the install easier.
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Ratbuell
Posted on Tuesday, March 18, 2014 - 09:25 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Whens the last time the bike(s) got a proper TPS reset and idle speed adjustment?
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1250_x1
Posted on Tuesday, March 18, 2014 - 09:32 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

It was fully dyno-tuned last year and is using a custom ecm spy map.
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Firemanjim
Posted on Wednesday, March 19, 2014 - 12:21 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Idle too high causing it to hang, should be about 1050 hot.
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Kalali
Posted on Wednesday, March 19, 2014 - 08:18 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

What Jim said. Lower the idle a little before doing anything else. The intake seal and/or injector o-rings would be next.
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Pash
Posted on Wednesday, March 19, 2014 - 09:06 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I would start with a TPS reset and set the idle at 1050 with a warm engine.
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Hootowl
Posted on Wednesday, March 19, 2014 - 09:54 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Concur, though I find that 950-1000 is a better idle RPM. Seems to settle down better.
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1250_x1
Posted on Wednesday, March 19, 2014 - 01:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Correction it idles right at 1000, i took a short ride this morning, but it didn't stay there once it fully warmed up.
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Kalali
Posted on Wednesday, March 19, 2014 - 09:18 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

In that case, test your intake seals for leaks. Propane gas is a clean way of testing to see if the engine speed changes. Keep the nozzle close to the gap between the flange and the head.
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Hootowl
Posted on Wednesday, March 19, 2014 - 09:47 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

It should idle at 1000 when fully warmed up. Adjust your idle.
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Ratbuell
Posted on Wednesday, March 19, 2014 - 10:25 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Adjust your idle and set the TPS when it is HOT.

If you do a cold reset, you can get these symptoms.

900 is low. Think "oil circulation". Remember - oil is not only a lubricant, but also the cooling system.
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