2008 K1200Lt does not idle well - BMW Luxury Touring Community
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post #1 of 13 Old Feb 10th, 2019, 8:37 am Thread Starter
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2008 K1200Lt does not idle well

I am new to the forum and new to the K1200 LT, I just bought this bike with 23,000 miles on it. At the dealer, it seemed to idle fine. But on the way home it died a couple of times when it should have been at idle. The dealer had just installed a new battery. So after a little research I tried the TPS reset procedure. It seemed to work, the bike idled for 15 minutes while I warmed it up to change all of the fluids. I got all of the fluids changed, put the bike together and of course the first ride the idle issue comes back. It seems to be more likely to die off acceleration. Or when you are slowing to a stop with the clutch in. But it will also occasionally die at a stop light.

One of my friends that is a car mechanic suggested cleaning the inside of the throttle bodies. I have not tried this yet because it will require taking the entire motorcycle apart again. I was hoping maybe someone here could suggest other ideas before I go back under the tupperware/tank.

Thanks in Advance!
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post #2 of 13 Old Feb 10th, 2019, 8:55 am
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Re: 2008 K1200Lt does not idle well

I had a similar problem when I drove mine home after purchase. Turned out to be a clogged/pinched fuel tank vent line. The fuel tank is plastic, so it just slowly contracted until the negative pressure overcame the ability of the fuel pump to operate properly. I loosened the fuel cap to allow ventilation until I could get it repaired. Could be something else for you, but easy to diagnose if the problem goes away after loosening the fuel cap.
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post #3 of 13 Old Feb 10th, 2019, 10:38 am
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Re: 2008 K1200Lt does not idle well

+1 on the tank vent. A loosened cap will verify that is the issue as it will go away. If it does not then it is not the throttle bodies being dirty as they just don't on this bike. A return spring that has come off on the TBs will cause all sorts of issues. Keep us posted on how it goes.

John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
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Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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post #4 of 13 Old Feb 10th, 2019, 11:09 am
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Re: 2008 K1200Lt does not idle well

Welcome to the forum by the way. Keep your questions coming on this thread so people can help. As you have found out, search is also a good thing. Plenty of info back in the files.

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post #5 of 13 Old Feb 11th, 2019, 11:03 pm
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Re: 2008 K1200Lt does not idle well

So... relevant to my post on this topic... I purchased my 2002 LT in late 2017 with 16K miles. It seemed logical to me that a bike that old with low miles would have been sitting for years, hence the build-up in the fuel tank. I owned a diesel car that had the same symptoms, and the problem was almost the same. To make a long story short, the label of an injector cleaner was found in the fuel tank. It starved for fuel. The service records of the LT ended at 6K in 2005, and I purchased it knowing full well that time had as much or more bearing on the life of the bike as the miles it had passed over. I had an 86 Gold Wing SEI, which I absolutely adored. It eventually developed an oil leak through the water pump, which was a minor issue, but indicative of a major pending failure of the water seal on the other side of the impeller. It was getting old, and the labor intensive effort/cost of the repair helped me to decide that the bright copper metallic color of my last oil change was enough for me to realize that it should be retired with dignity. Prior to that, a good friend of mine agreed to ride with me to Minot N Dakota from our homes in North Ca a week after the Sturgis Rally was over. It was a great ride. He led the ride with his 2002 K1200lt. We swapped bikes for a time during the long roads to keep it interesting, and I was very impressed, but not sold on the ride, hoping that Honda would keep up with the competition. Didn't happen. I watched the reviews and waited, and waited... Long story long, The BMW spoiled me, and I couldn't pass up the $2,700 price tag of my LT. I spent another $2,700 getting it serviced and farkled. Not disappointed.

As an aside, trying to get up to 10 posts so i can view signatures is going to be painful. For you...



I am in love... I suspect that the clogged fuel tank vent line from the stale gas had something to do with the price.
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Last edited by jzeiler; Feb 12th, 2019 at 9:17 am. Reason: Removed the big blank space
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post #6 of 13 Old Feb 13th, 2019, 2:37 pm Thread Starter
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Re: 2008 K1200Lt does not idle well

Great suggestion, unfortunately it did not turn out to be the issue. Even with the gas cap removed the idle problem persists. Anyone else got an idea?
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post #7 of 13 Old Feb 13th, 2019, 5:13 pm
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Re: 2008 K1200Lt does not idle well

Over at the Motorbrick.com site, the typical answer is to put a bottle or two of Chevron Techron in a full tank of no corn premium (if you can find it) and give it some yee haw until you get those injectors clean.

Sitting is the worst thing you can do to these machines.
Does it only happen hot?
Look for an intake leak as that might lean out the idle.
Next I might test the various sensors for being in spec.

These are modern engines and will pretty much run if they are getting the correct information.

_____________

Kim Thomson
Motorcycle Cigar Smoker
05 K1200LT - The Golden Rocket Ship
91 K100RS - The White Stallion
85 K100 Standard - Big Red
79 R65 - "The Bee" is a buzzin' again!
06 525i - Premium, Sport, Comfort, Xenons

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02 K1200LTC - Big Blue (accident at 40k)
88 K100RT - Chocolate (it was brown, melted - fire)
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post #8 of 13 Old Feb 14th, 2019, 7:49 am
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Re: 2008 K1200Lt does not idle well

You mentioned "going back in under the tupperware and tank again". Were you or anyone else in there recently? If so then I would go right back in and look at the vacuum lines and make sure they are on tight at a minimum. If the throttle bodies were off I would look at return springs to make sure they are all in tact.

John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
K4AN

Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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post #9 of 13 Old Feb 15th, 2019, 8:14 am
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Re: 2008 K1200Lt does not idle well

I had the same problem with my 2009 wanting to die at stoplights. Turned out to be a cracked breather hose. Unfortunately, you have to go under the tank to find it. Good luck !

Long time lurker, first time poster
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post #10 of 13 Old Feb 21st, 2019, 11:59 am Thread Starter
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Re: 2008 K1200Lt does not idle well

Well I tried everything else first because I always thought that injector cleaner was total voodoo but I take it all back... it worked. I used a few ounces of Seafoam from Wal-Mart. It started running better almost right away, after a 1/2 tank of gas the idle issue is completely gone. I promise this is not a plug for Seafoam... just wanted to mention this incase someone is reading this forum. It's an easy fix, next time I will try it first instead of last, LOL
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post #11 of 13 Old Feb 21st, 2019, 12:19 pm
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Re: 2008 K1200Lt does not idle well

Great that is is up and running.

Beech
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post #12 of 13 Old Feb 26th, 2019, 10:27 pm
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Re: 2008 K1200Lt does not idle well

Seafoam!

Some call it a gift from the gods while others say it's the work of the devil.

Testimonials like this, though, are hard to dispute.

2007 K1200LT "BUTKA"
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post #13 of 13 Old Feb 26th, 2019, 10:44 pm
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Re: 2008 K1200Lt does not idle well

Quote:
Originally Posted by DRONE View Post
Seafoam!

Some call it a gift from the gods while others say it's the work of the devil.

Testimonials like this, though, are hard to dispute.
I have been using Seafoam for a good 15-20 years and it works wonders. I use it religiously and have never had a fuel issue related to dirty injectors or carbs. I also troll Craigslist and Facebook looking for lawnmowers, snowblower and other small engines that have been sitting for a while and now won't start. In almost every situation I drain the gas, put in fresh fuel, a heavy dose of Seafoam, and a new plug and I would say that it fixes 4 out of 5 of them. Just this winter I have bought, fixed, and resold 3 snowblowers and all of them wouldn't start when I got them. Less than an hours work on each of them and they were running.

2002 BMW K1200LT 57k (new to me 1-20-19)
1971 BMW R60/5 27k (father-in-law was original owner)
1972 & 1973 Honda Trail 70s
1971 Honda XL175 (grandfather was original owner)
1997 Ducati 748 Sold
2000 Ducati 996 7k
2001 Ducati Monster 800 Sold
2008 Ducati Monster 696 Sold
1997 Honda CBR600 Sold
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