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Buell Forum » 1125R Superbike Board » Archives 001 » Archive through May 17, 2010 » VOLTAGE AFTER 1125R IS WARM « Previous Next »

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Jackgraves
Posted on Friday, May 07, 2010 - 09:39 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Mine charges at 12.0 to 12.4 after normal op temp is reached at idle is this low or is this in the normal values.
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Froggy
Posted on Friday, May 07, 2010 - 09:50 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

That is low, but if you are running a lower than normal idle (Erik Buell Racing ECM with low idle or tweaked stock ECM), that is going to happen.
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Samg
Posted on Saturday, May 08, 2010 - 09:26 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Jackgraves..Yea my cr does thats too on hot days..Once i get moving above 25 mph .it charges around 13.8 to 14 v...I have the stock ECM...
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Trafford
Posted on Saturday, May 08, 2010 - 11:56 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Sorry Froggy you are not totally right. I have a Battery Condition gauge permanently above my IC and it never shows less than 13-14v when running at any RPM. I have heated jacket and grips and navigation plus the battery gauge. I have the Buell Race ECM and get the same voltage output at lower idle. I have a Torquehammer ECU and a standard ECU and its the same. I have a Jan 08 build 1125R with a 30th Nov 09 Flash and all original components.
There is more to it than just idle speed.
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Lastonetherebuys
Posted on Saturday, May 08, 2010 - 02:14 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

idle speed has tons to do with it. the lower the rpm the lover the stator is spinning meaning that there is less power being produced.
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Trafford
Posted on Saturday, May 08, 2010 - 02:19 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Lastonetherebuys - Did you read my report? It is a report not my opinion. I am reporting the results on my bike. Not all 1125Rs. As an experiment last week I lowered the idle down to 1000 rpm using ECM spy/Tunerpro and ecmread. The voltage was still above 12.7v. Like I said I am reporting facts.
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Reducati
Posted on Saturday, May 08, 2010 - 02:26 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

my lowered idle race ecm, also stays above 12.5 while idling (varies between 12.5 and 14.2) at idle ...and i believe the 1250rpm idle is "normal"
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Trafford
Posted on Saturday, May 08, 2010 - 02:54 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Reducati-Thanks for your confirmation that I am not alone!!
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Americanmadexb
Posted on Saturday, May 08, 2010 - 03:01 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

What is the stock idle? My manual is in the garage and i'm too lazy to go look!

I know when i start it up cold its up around 1600-1700 for about 30 sec then drops to around 1500..
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Reducati
Posted on Saturday, May 08, 2010 - 03:36 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

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Idle speed is monitored and controlled by the Electronic Control Module (ECM) and Idle Air Control (IAC) and is not adjustable.

Engine Idle Speed: Buell 1125 Models

MODEL
REGULAR IDLE

1125R
1250 RPM nominal




Wheel Bearings
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Jackgraves
Posted on Saturday, May 08, 2010 - 04:42 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

This bike idles low with the stock ecm it too is around 13.6 to 14.2 riding it, so I guess all is ok. I sent Erik Buell Racing my ECM back they are going to raise it 200-300 rpm from its low setting now. Samg it was 95 in FL yesterday idle was 12.0 to 12.4 at normal op temp. Man FL is getting too hot, I wanna move to TN or NC.
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Samg
Posted on Saturday, May 08, 2010 - 05:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Jack, last time i was in Florida it was in the 60s ( bike week 2010 ) and nows its 95..Its about time..I heard you guys did have a cool winter..Yea as long as its hot,i am a idle for long time ( traffic ) the voltage drips to 11.9 to 12.3.....
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Dipstick
Posted on Tuesday, May 11, 2010 - 09:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

My 09 R shows 13.8V at idle and always has since new for 8000 mi. with no problems.
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