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Old 02-05-2013, 03:32 AM   #1
Aventeren OP
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Location: Did It: US to Ushuaia, Argentina
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In Santiago, CHILE: '02 1150 GSA Idle Question

Howdy--

I'm currently in Santiago, Chile about to throw my leg over the saddle for a long day to Pucon (top of the Lakes District). I rode through SW Bolivia (Laguna's Route), and when I got out of the Lagunas route I noticed that my bike was idling really high--or the high idling may have been after I put in 97 octane in Chile--not sure. In any event, my idle is now quite high (1,700 to 2,000 RPM), and it is especially bad when I come off the Autopista ("freeway") and my engine is hot. Usually you can just pop the throttle to get the RPM to drop back down to the normal sub 1,500 RPM range, but that is not working all of the time. I did switch from the 97 octane gas to the 93 octane gas, but that doesn't seem to help.

So what do we think? Is this a TPS thing? Throttle body thing? Throttle cable thing? Fuel filter? Fuel pump? Spark plugs?

I have my ohm meter and could check out the TPS, but I am doubting it would be the throttle bodies, as I am not getting any surging. It might be the fuel filter/pump, as I did just get out of Bolivia and Peru--but the fuel pump and filter were both new when I left the states 3 months ago.

Beyond the high RPM idle, the bike is running amazing! I crossed 90,000 miles on the odometer outside of Lake Titicaca in Peru before we crossed the border into Bolivia. She's an old gal, but she's solid--and I can smell Ushuaia!

I'm not like the other dudes down here with tons of time (I have a wife for christ's sake), so I need to keep moving. So unless this is an indication of a much more perilous issue, I'm predisposed to keep moving south, which would be outside the Santiago safe zone (moto shops everywhere, BMW, etc). Therefore, I would appreciate a quick response in case I need to stay in Santiago for the day sorting this out.

BTW, Chile is amazing. Clearly I'm able to appreciate it because I've now been through quite a few of these Latin American gems...but Chile is amazing.

Okay, I'm going to go and snag a cup of coffee and breakfast. Thanks guys (and gals)!
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Old 02-05-2013, 03:39 AM   #2
billdonna
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"Usually you can just pop the throttle to get the RPM to drop back down"

There's the key brother. Sounds mechanical. I think you are on the right track with sticky throttle body or cables. Make sure they funtion flawlessly before moving on to the electrics.

Good luck!!
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Old 02-05-2013, 03:44 AM   #3
legasea
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Starting...I guess...
Nothing to do with the octane rate. I run mine indifferently and it doesn't happen. The motronic doesn' t consider it.
I would start to check if the TPS is loose or changed it's fixing accidentaly and then the throttle cable, at least releasing it to see.
Well, got to start somewhere...
You´ll solve it.
Keep going.
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Old 02-05-2013, 03:49 AM   #4
Aventeren OP
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The Bike is, um, a bit dirty

So on the mechanical front, I do have quite a bit of goodness on the bike that I have so far elected to leave in its natural state, as I strongly believe that I GS should remain unwashed, which enhances its bad ass appeal. So perhaps I should rinse the throttle bodies and throttle cables. Maybe it's just a sticky bit from the Salar or sand or something.

So far I am not seeing any alarm bells, so I'm going to plan on continuing south.

I love you early risers! Clearly being in Canada helps, but still, it's your quick responses that make ADV so great. Thanks a ton! Heck, I hadn't even gotten my own damn coffee yet before you responded! Much appreciated!
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Old 02-05-2013, 05:01 AM   #5
Vladtux
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Hi Aventeren

Glad u have a nice trip until Santiago... and enjoy you trip in Chile.

I cant recommend it what happen with u bike, I know a good mechanical in case u need. I bring my bmw G650x challenge to him and no problems until now.

Btw if you wanto drinks some beer let me know hahaha

Im newbie compare with u but I love bikes too!
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Old 02-05-2013, 05:54 AM   #6
legasea
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Quote:
Originally Posted by Aventeren View Post
...I love you early risers! Clearly being in Canada helps, but still, it's your quick responses that make ADV so great. Thanks a ton! Heck, I hadn't even gotten my own damn coffee yet before you responded! Much appreciated!
Well, I am an early riser. That's true.
But living on the other side of the Atlantic makes some difference. There´s always someone awaken.
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Old 02-05-2013, 07:19 AM   #7
LaurelPerryOnLand
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Seen this?

"my idle is now quite high (1,700 to 2,000 RPM)"

http://advrider.com/forums/showthread.php?t=835521

Particularly Post #5! Won't hurt to check!
Source: The Master...JVB.
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Old 02-05-2013, 08:46 AM   #8
kellymac530
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It just needs a bit of cleaning likely of the outside and possibly inside of the TBs. I woudl check/clean/lube the throttle cable and the crossover cable {I assume the 1150 has one like my 1100 does}.

Maybe set it on the cenyer stand and start it let it get to the high idle problem, then reach down and manually close the butterfly from the actuator arm {where the cable mounts} and see if it drops, then you would know it is either gum/carbon inside of the TB on the butterfly, or in the cable and not some FI issue.
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Old 02-05-2013, 03:27 PM   #9
LaurelPerryOnLand
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Aventeren,

Que Pasa? We're all sitting here awaiting your progress report!

Are you out of the woods yet? Can we send the 'emergency team' home?

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Old 02-05-2013, 08:23 PM   #10
scooteraug02
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How is the fast idle lever on the left grip? My 03 GSA had one?


Number 1 below. I left mine set for high idle once.

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Old 02-06-2013, 03:44 AM   #11
Steptoe
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Turn the idle screws inwards 1/2 - 3/4 of a turn each side. Job done
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Old 02-13-2013, 12:46 AM   #12
legasea
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Quote:
Originally Posted by Steptoe View Post
Turn the idle screws inwards 1/2 - 3/4 of a turn each side. Job done
Did you read this?
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Old 02-13-2013, 02:33 AM   #13
Aventeren OP
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I did, and I tried it, but I have bigger problems with this TB. Basically the pulley that receives the throttle body has a shaft on it that connects into the body of the TB. From what I can see, this shaft is beginning to wear, and so the whole shaft/pulley assembly is beginning to wobble like a born bearing. I'm one day out from Ushuaia, so I hope that I'll be okay--and I think I will. This bike is so damn resilient...just so long as this damn TB does not physically blow up, I'm going to finish my trip, get the bike back to the US and then tear into it.

There is a time to tear into TBs and there is a time not to. As it turns out, I have decided that tearing into a TB in a foreign country to attempt a repair on a problem that is not a trip ender (yet) is not a wise use of time and energy. I'm therefore in finger crossing mode. As long as I'm making km, my predilection is to continue south...and then deal with this later.

Thanks for thinking of me!!!!! I really appreciate it!!!!



Quote:
Originally Posted by legasea View Post
Did you read this?
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Old 02-06-2013, 06:08 AM   #14
Aventeren OP
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Update (kinda)

So I made it down to Villarrica yesterday (450 miles in 8 hours, whoa). Again, get down here folks...Chile is amazing. Even if you just fly into Santiago and then rent a bike, it's amazing. It's just like the US. Just freaking do it.

Okay, so I checked to make sure that the cables are seated corrected (ie, not propped up), and they're fine, so we can rule that out. (Thanks, LaurelPerryOnLand)

I sprayed the throttle bodies with a bit of water from the parking lot dude's hose before I left Santiago, but that didn't totally solve the problem.

I'm still having to manually "pop" the throttle to get the idle to come back down, and then the idle will only drop down probably 50% of the time...the other 50% it remains high.

I have a great place to tinker today, as today was a planning day anyway for my route south, so now that I've recovered from yesterday's ride down here, I'll walk up and take a look at these various items and report back. Thanks to everyone for their input!

I'm also going to run into town and see if I can track down a place to clean my bike up--at least in this one area on the bike! I like the way it looks, and if I can avoid spit shining it I will (plus as a general rule, I hate cleaning).

Again, thanks to everyone for their help, input and suggestions. You are what make ADV so great.
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Old 02-06-2013, 11:02 AM   #15
kellymac530
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Chile and Argentina are awesome. I can not wait, we are going next February. My wife is from Chile. Her mom and dad and brothers live here now, but all of the rest of her family is still there in Rancagua about 100 miles south east of Santiago.

We have a book on the country and it is just awesome. YOu HAVE to make it down to the glacier. Absolutely gorgeous.

A friend of ours from New Zealand saw some pics of the Chilean Glaciers and thought they were the Glaciers in NZ they look so much alike.

Ride safe and have fun.
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