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Old Today, 01:28 PM   #1
pietas OP
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Joined: Sep 2014
Location: Cape Town
Oddometer: 7
R80 G/S exhaust with rattle

My 81 R80 G/S exhaust has a very anoying rattle between 2000 and 2500 revs.
My bike has a brand new Keihan silenser (banana). I am unsure if the header pipes and collector box are originals but it is BMW parts

I have removed everything and refitted but it still remains. And nothing is loose. It also makes no difference if pipes are cold or hot.

Any ideas of what could possible the cause?
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Old Today, 08:27 PM   #2
Solo Lobo
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Joined: Mar 2004
Location: Shoreline, WA
Oddometer: 8,829
I would say to take of the muffler and shake it to try and reproduce the rattle... if it is there, invert the muffler and see if you can shake out the offending bit.

Start there and report back
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your bike is suitably dirty. Well done.
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So I sold my GS and went shopping for a G/S!
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