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-   -   rattle, fast ticking noise at +/- 3800 rpm when stopping to accelerate. (http://www.advrider.com/forums/showthread.php?t=838594)

wim 11-03-2012 06:24 AM

rattle, fast ticking noise at +/- 3800 rpm when stopping to accelerate.
 
When pulling up in 2nd or 3th to 4000 rpm and then trying to keep the bike at that rpm (or slightly lowering it), it mostly starts to have a fast tick/rattle. This most of the time for a short period. It is a brand new GS1200 and it behaved like this from the first km. It has now 11000 km and noise is still there. I have driven two other new GS1200 from the shop on which I could not reproduce this behavior. I mentioned it and they said some GS1200 do that, but I should not worry about it. It is the engine they said. Because the engine runs well, my only worry is : is this a sign of something more serious that lies ahead ? (when the warranty is over)
Thanks

SHOELESS 11-03-2012 06:46 AM

My 2011 does the same thing,never worried about it................

wim 11-05-2012 10:43 AM

Thanks
 
Glad there are long term survivors without problems
Most of the time the noise seems "in sync" with the engines rpm, but sometimes it is not. (It is not pinging or valve clearance.)
Anyway, When i put my earplugs in, there is no "ticking" anymore :d

SkiFly01 11-05-2012 01:09 PM

Have you checked if your fog lights are loose? If so they tend to point down and the backside bumps against the crash bars.

twray 11-05-2012 01:25 PM

My 2012 GSA does the exact same thing, at the same rpms. Sounds to me like like timing chain rattle. I also though it may be the valve in the exhaust. It would be nice to have a diagnosis.

Doofus 11-05-2012 04:16 PM

Same here....
 
Also the exact same situation on my 2011 GSA. At first thought it was right cylinder head based on sound location, but had those adjusted at regular service interval and everything was fine. Currently suspect exhaust flap. Mine happens more in the 4200 to 4700 rpm range, primarily when throttling off. 2nd, 3rd and 4th gears most noticeable. Probably my only single complaint on bike....mentally distracting because I feel like it shouldn't be there. Didn't happen for the first 3,000 miles or so, but has been there ever since. Asked dealer to check it out, they said they couldn't find any issue but I picked up the bike at closing time on a Saturday and everyone was bugging out so I didn't have a chance to drill down on the possible causes. Would be very interested in expert opinions or, in lieu of that, anything comical.

gslf 11-05-2012 06:25 PM

me too
 
I have a 2012 gs since april and around 3800 rpm a ticking that was there since 1000 km, drove me nuts, have 11500 km now and i don't hear it anymore, better said i don't want to hear it anymore.
I do have 2 or 3 odd sounds i hear once in a while, but i do have to say that the bike runs better the more i run it hard.:D

Huckwheat 11-06-2012 07:19 PM

I think I had the same sound.
 
I have tossed around whether or not to comment because I'm no mechanic, but I had a " ticking " or " rattle " around 3500 until 4000 that appeared at around 10,000 miles on my 2010 GSA. Sounded like it was coming up from beneath the instruments. I asked Max in Troy about it at my 12,000 mile service & it went in one ear and out the other, so I lived with the noise in hopes that it would disappear. But that little crap sure bugs me.
A few months back, ( around 16,000 miles ) a local gas station started selling Ethanol- free gas. I started running that fuel and the noise disappeared immediately. Gone. Prior to, I always gassed up (10% Ethanol) at pretty much the same couple of stations down the road from home. Now as I said, I 'aint no mechanic and I'm not a fuel expert, and perhaps it was just happenstance, but that gas seems to have stopped the noise. I have not heard it for the past 2,500 miles. Perhaps it was the quality of the fuel that I was using before the Ethanol free and not the Ethanol itself, I dont know. Maybe it had nothing to do with the fuel, but if you are not running Ethanol-free and have a chance to, give it a try. If you are running it, try changing things up with fuel from another station or two.
I'd be interested to hear if it makes a difference for anyone.

wim 11-08-2012 01:46 PM

Not pinging in my case
 
In my case it certainly is not pinging. Does not sound like it. The fuel i use has an octane number of 98+
I have had plenty of other people now telling me the "ticking/rattle" happens sometimes on certain GS1200's so I am not worried about it. Maybe eventually it will dissappear .... or not. :D

Huckwheat 11-08-2012 07:17 PM

Not pinging in my case either
 
Wim,
Mine wasnt a ping either. It was a rattle that would come out of nowhere at 3500 and disappear at around 4000. I would level off the throttle & it would hang around, but if I accelerated through that RPM range or decelerated it would disappear. I too was running the highest octane available in Upstate New York and Northern Vermont.

Beemer Rob 11-09-2012 03:22 AM

Rattle at 3500 RPM
 
My 2012 1200 Triple Black started that 3500 rpm rattle on the left side at about 2000 miles.
Now at 6 k miles and it might be getting worse.
I only hear it when there is no load on the motor, in any gear.
Tried to hear it while stopped, in neutral, by holding the rpm at 3500, no noise.
Valve are all in spec.
Sync is spot on.
Sounds like a cam chain.
I think it's too loud to be the throttle body, like the 1150's (My old 1100's and 1150's knocked like that when the t/b bushings were worn.)
Could it be piston slap?
It's really annoying, I just try to stay out of that rpm range, but something's not right.
I haven't talked to any dealers yet.
I hope someone could find the cause.

PlecoLB 11-09-2012 03:25 AM

Bad news
 
See thread here: http://www.advrider.com/forums/showthread.php?t=840068

TuonoBiker 11-09-2012 06:21 AM

Quote:

Originally Posted by PlecoLB (Post 20005171)


Wow - that is quite a tear-down for a dirt floor garage - holy heck!

I'm getting the same noise as other's here have described. And as someone else mentioned, it almost sounds like its coming up from around the guage cluster.

I think what PlecoLB is describing is far different from the rattle that I hear.

You said: "When I bought it, it had a high pitched rattle noise at about 4000RPM while cruising / coasting. Its gone under power.
I now have what I can only describe as a stretched chain noise from low revs all the way up while coasting / cruising. Gone when I pull the clutch and drop the revs while rolling. "

Does that mean the rattle went away and then several thousand miles later you have the "stretched chain noise" ?

Could it be the two are/were separate issues.

I guess the last thing I'm going to do is tear down a new bike in search of a noise that was happening on a 150000 km bike. Most everyone here is complaining about the noise on fairly new machines with lower miles. I don't know......I won't let this new info make me paranoid. I'm gonna run it like a crazy ape and not look back.

:freaky

PlecoLB 11-09-2012 07:08 AM

The high pitched noise gradually changed into amild rattle, which slowly turned into a rattle that grew
Louder and louder.

When I started to feel it in my feet, I knew it was time to have a good look.

Bearings are metal on metal, which you can feel.

Problem with the bmw is that it will idle on its side. Then the oil pump runs dry and bearing damage will follow very quickly. As the rest of the motor has very little wear, I don't think the mileage caused this wear.

The bike was previously idling on its side or run low on oil.

TuonoBiker 11-09-2012 08:59 AM

Yeah, it definitely sounds like the previous owner ran the snot out the bike and maybe even dumped it a few times if, as you say, it seems like it was run on its side.

In any case, I don't think the sounds you heard and then started to feel are reflecting what most are experiencing on this thread.

It seems like you had a very clear progression of sound to vibration (metal on metal) to failure.

That sucks - hope you were able to square it away properly!


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