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Old 28-Nov-2014, 00:02
2strokesmoke 2strokesmoke is offline
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Suspected cracks in swing arm.
Whilst in the process of changing the rear tyre and chain & sprockets, I have noticed under the chain guide towards the front of the arm what looks like heavy scratches or possible cracks. I seem to remember either reading about faulty swing arms or being told about this a while back but can't remember which bike or from which year was affected.
My bike is a '93 750SS and to put my mind at rest would very much appreciate any info or pictures showing faulty arms.
I may well be concerned about nothing but would very much appreciate any help.
Many thanks
Richard
Last edited by 2strokesmoke : 28-Nov-2014 at 00:08.
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Old 28-Nov-2014, 09:18
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Can you post up a picture of yours? It may just be rub marks from the chain, but a picture would help!

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than screaming in terror like his passengers.- Jim Harkins

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Old 03-Dec-2014, 22:11
2strokesmoke 2strokesmoke is offline
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As requested, my wife has managed to take a picture. Any ideas?

To date, unfortunately nobody has been able to tell me where the swinging arms are known to crack.

Thanks Richard
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Old 05-Dec-2014, 13:18
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The Hammer The Hammer is offline
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Look like scratches to me, from what I can see in the pic I wouldn't be too bothered.
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Old 05-Dec-2014, 13:54
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Have to agree that they look like surface scratches to me as well.
They look like they're uneven so not due to chain wear otherwise they would be regular and along the line of the chain run.
Could have been cause by something getting picked up in the chain like a stone or bolt or some other road debris, or even through bad maintenance with a slip of a screwdriver or something!
Nothing to worry about from the looks of it.

I'd rather die peacefully in my sleep like my Grandfather,
than screaming in terror like his passengers.- Jim Harkins

Ducati 748S | Ducati Hypermotard 1100S | Ducati Panigale V4 SP #876 | 600-620SS DesmoDue Racebike #111 <-- Sold!!
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Old 07-Dec-2014, 20:18
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Certainly look like just scratches. They used to crack when the pinch bolts were over tightened.
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Old 07-Dec-2014, 22:32
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Quote:
Originally Posted by quarxuk
Certainly look like just scratches. They used to crack when the pinch bolts were over tightened.


Yep just scratches is my opinion also, only seen cracks around pinch bolt area and shock mount

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Old 09-Dec-2014, 23:13
2strokesmoke 2strokesmoke is offline
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Many thanks to you all for taking the time to have a look and comment, it has put my mind at rest.
Cheers, Richard
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