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Old 05-26-2015, 03:34 AM   #1
windkind OP
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Clanking noise Sertao

Hi all, my first post here. I need some advice. this seems like the best forum to ask my technical question. Mods please move this if needed.



I bought my used Sertao this month and so far I'm very happy with it. Only thing is, last week it started making a faint clank clank clank noise down at the pegs and since then it's gotten worse and so much that I can actually feel it in the pegs.

At first I thought it might be the chain slack but the chain is fine. I noticed it is especially loud when I release the clutch and pull away and then it will remain through second gear and after that I don't hear or feel it that much, also not when we are two up and at speed, which makes me wonder if it is the gearbox that is the problem. What exactly, I don't know.



Does anyone know what this could be or has anyone experienced this before and any suggestions on what I should do?



Thanks
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Old 05-26-2015, 04:12 AM   #2
gmk999
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Could it be a loose Kickstand or Centerstand? I just had to reset the stop nut on my centerstand for that reason. It was hitting my swingarm. I could only hear it at low speed.
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Old 05-26-2015, 04:15 AM   #3
windkind OP
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I checked both the kickstand and center stand and they are both solid with very little movement.
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Old 05-26-2015, 05:02 AM   #4
Deans BMW
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How many miles, what does the oil look like, did you buy it from a dealer????

Do you have a picture of the bike, how was it taken care of by the previous owner.

A little more info would be very helpful.
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Old 05-26-2015, 05:10 AM   #5
gmk999
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Bummer I was hoping for a simple fix,
Also , have you checked in at the the Chaingang for Info ? F650.com , there is tons of f specific info available there too.
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Old 05-26-2015, 05:40 AM   #6
windkind OP
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Quote:
Originally Posted by Deans BMW View Post
How many miles, what does the oil look like, did you buy it from a dealer????

Do you have a picture of the bike, how was it taken care of by the previous owner.

A little more info would be very helpful.
It has 4000 miles on the clock, serviced by BMW before I bought it so oil etc. is fine but I did not buy it from a dealer. The previous owner did take it off road and it does have scratches and marks from putting it down I guess. I inspected the frame for any cracks and chain and sprockets are still good. Engine still runs perfectly so ignoring the cosmetic damage I thought it was a good buy.

When I took it for a test ride there was nothing wrong with it that I could pick up. This is my second 650gs (first one I bought new) so I know what the bike feels like and sounds like and didn't pick up on any odd behavior or sounds while on the test ride so figured the bike was okay.

I don't have any pictures with me at the moment but can upload later today.
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Old 05-26-2015, 05:42 AM   #7
windkind OP
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Quote:
Originally Posted by gmk999 View Post
Bummer I was hoping for a simple fix,
Also , have you checked in at the the Chaingang for Info ? F650.com , there is tons of f specific info available there too.
Thanks for the help. I tried chaingang as well. I always try and find previously answered question before asking but couldn't get anything specific to my problem.

EDIT: I thought I read through everything but I obviously missed a whole lot. I'll keep digging.

windkind screwed with this post 05-26-2015 at 05:53 AM
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Old 05-26-2015, 05:55 AM   #8
sanjoh
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Originally Posted by windkind View Post
Does anyone know what this could be or has anyone experienced this before and any suggestions on what I should do?
Thanks
A bike with 4k miles shouldn't need much.

I would start with a close inspection of the chain/sprockets. Put it on the centerstand and spin the back tire by hand.

Are the sprockets in alignment?
Any frozen/rusty/sticky links in the chain?
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Old 05-26-2015, 06:03 AM   #9
windkind OP
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Okay so after reading a post on Chaingang, I'll go and have another look at my chain and make sure there aren't problems there and tighten it up a bit more, maybe that will help.

That means it was me that stretched out the chain in my 3 weeks of riding the bike. That can't be right, can it?

How do you stretch a chain that bad in 3 weeks?

---

thanks sanjoh I'll do that.
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Old 05-26-2015, 06:06 AM   #10
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look for kinks in the chain. As you roll the back tire, you'll see any kinks (they won't straighten out as they roll off the sprocket).
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Old 05-26-2015, 01:22 PM   #11
gmk999
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Quote:
Originally Posted by windkind View Post
Okay so after reading a post on Chaingang, I'll go and have another look at my chain and make sure there aren't problems there and tighten it up a bit more, maybe that will help.

That means it was me that stretched out the chain in my 3 weeks of riding the bike. That can't be right, can it?

How do you stretch a chain that bad in 3 weeks?



---

thanks sanjoh I'll do that.
Was it a new chain? when x and O ring chains start to go ,they breakdown fast.
Also Just because it is a 520 doesn’t mean it it strong enough for the torque of a big thumper. If the PO put on a cheaper chain to make the sale, your prob could be there.
Good luck
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Old 05-27-2015, 03:26 AM   #12
windkind OP
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So yesterday I found the kink in the chain. The first time I inspected the chain I didn't even see it but now it's very noticable.

Guess it's time for a new chain then. Any recommendations on a good brand?
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Old 05-27-2015, 04:17 AM   #13
gmk999
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Glad its only that, I use Pro taper(gold) x-ring, I get a few years out of them if I lube them well. The bike has a lot of torque so look at a Chain that is above #8,000 rated
http://www.motorcycle-superstore.com...T.ac=SLIsearch
I have had good luck with the higher end DID chains also.
You can expect to spend near $100
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Old 05-27-2015, 04:46 AM   #14
windkind OP
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Thanks GMK999. I'll see what they go for here.
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