Uneven Idle


Information and questions on GL1800 Goldwings (2001-2017)
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Jiml
Posts: 7
Joined: Sat Jul 09, 2016 1:04 pm
Location: Candia, New Hampshire
Motorcycle: 2009 Goldwing 1800

Uneven Idle

Post by Jiml » Wed Jun 20, 2018 2:03 pm



I've recently observed that my idle speed is fluctuating between 750 to 1000 rpm at any given time. Is such variability normal? If not what might at the root of this issue?



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cihilb
Posts: 267
Joined: Sun Nov 22, 2009 9:20 pm
Location: Natrona Hts., PA
Motorcycle: 2012 Pearl White

Re: Uneven Idle

Post by cihilb » Wed Jun 20, 2018 7:35 pm

You can try to reset the ECM. Start bike cold and let it idle until the fans come on. DO NOT touch the throttle. It may take a while for the fans to turn on, then shut it down. See how it idles after the reset.
Also, the idle will change if you are pulling on the clutch, this is normal.

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AZgl1800
Posts: 1330
Joined: Thu Oct 30, 2008 2:46 pm
Location: Lake Oologah Indian Territory USA
Motorcycle: '02 GL1800

Re: Uneven Idle

Post by AZgl1800 » Wed Jun 20, 2018 8:53 pm

Jiml wrote:
Wed Jun 20, 2018 2:03 pm
I've recently observed that my idle speed is fluctuating between 750 to 1000 rpm at any given time. Is such variability normal? If not what might at the root of this issue?
IF,
my hand is still on the throttle grip, I have noticed that a slight bit, ever so slight, of "throttle applied" will cause a "hunting effect" or an idle surge.

Removing my hand off the grip stops that.

Might you be having something like that going on :?:
~John

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mcbrown
Posts: 60
Joined: Wed Sep 07, 2011 11:14 am
Location: Atwell, Western Australia
Motorcycle: 2010 GL1800CADA
1978 GL1000 K3 sold
1975 GL1000 K1 sold
Honda CB500/4 sold
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Re: Uneven Idle

Post by mcbrown » Sun Aug 05, 2018 3:13 am

I have a 2010 airbag GW which did this idle fluctuation from new when purchased in 2011. I reset the ECM as described above and it did improve but now and again it still does it but more so in the summer when the air temp is higher or when stuck in traffic.

Murray

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GoldWingrGreg
Posts: 279
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Location: Zephyrhills, Florida
Motorcycle: 89 GL1500
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Re: Uneven Idle

Post by GoldWingrGreg » Sun Aug 05, 2018 8:28 am

Jiml wrote:
Wed Jun 20, 2018 2:03 pm
I've recently observed that my idle speed is fluctuating between 750 to 1000 rpm at any given time. Is such variability normal? If not what might at the root of this issue?
Year is always helpful !!!
Is yours doing it during warm up ???



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