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Old 09-05-2014, 11:25 PM   #1
Btjans OP
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Joined: Mar 2014
Location: AZ
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2014 F800 GSA idles rough

Hi. I bought a used 2014 GSA with about 8500 miles on it. After start up it idles what I can only describe as rough. This is my first bmw so I don't have a baseline for how smooth it is supposed to be. Do any of you have a newer GS that does this? It's still under warranty and I could take it to the shop, but wanted to get some feedback from this braintrust first. It has never stalled out when idling. Seems plenty powerful when cracking the throttle. I really love this bike but have this nagging thing I need to put to rest. Since it's a bmw I just assumed it would be smooth as silk when idling but as the guy said when I started it before I bought it " thats how beemers run". Was he right?
Thanks all and have a safe weekend
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Old 09-06-2014, 05:30 AM   #2
deijmaser
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Location: Montreal, cold in winter!
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Great question, my 2014 seems "smooth" but as it's totally new I only have around 100km on it; but I will keep you up to date if it changes.

If you have the time, can you post a youtube video so I can compare the idle to mine?
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Old 09-06-2014, 07:08 AM   #3
ebrabaek
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Location: Grand Valley, Colorado
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They should all idle smooth. The new 12gs, not s much, but the 8gs is very smooth. There are a few things that could cause a rough idle. First, I would pour about 1 oz of techron per gallon of fuel in the tank. If the injectors are partially blocked then you will have a rough idle. The 8gs is known to be sensitive to ethanol, and techron fixes most of that. Try that first, and run it at all throttle openings. If that does not help, then we will have a look at your charcoal canister system if you have such.
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Old 09-06-2014, 07:10 AM   #4
Indy Unlimited
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Location: Parker, CO
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Try some injector cleaner. These bikes are notorious for aluminum oxide clogging from ethanol fuels eating the fuel pumps.
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Old 09-06-2014, 10:55 AM   #5
SubAtomicGenius
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Location: Avalon Rock
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Got a new 2014 GS, experienced a few rough idles at stop a couple of times. May be the premium gas... Bad batch? Dunno.
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Old 09-06-2014, 11:37 AM   #6
LeCler
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Location: Devil's Den, AR
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My 8 GSA

Mine has over 13K and it runs great. I would only have to chalk it up to bad gas. Unless you live at altitude, and in that case I did experience rough idle when riding across CO last June. Otherwise, I never run less than 89 Octane in her...ever.
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Old 09-06-2014, 11:43 AM   #7
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I am now thinking it may be bad gas, and Im not talking about the Mexican food i ate the other day.
I filled up with super last time and it seems to be a little better now, although I will try the Tekron cleaner as well.
Thanks everyone! I really appreciate the advice for this rookie.
Have a great/safe wknd!
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Old 09-06-2014, 11:51 AM   #8
Kamala
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Toss a little Startron in the tank with each fill up. Great insurance for Ethanol problems.
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