Tue, 05 May 1998 11:09:49 +0300 - Message No. 2807
From: sakis

Subject: [Fwd: fracture due to vibration]


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Hi all ..

First of all i wanna thank you all for your wishes !!

Well for the subject now ..
I have seen many needles broken with many different type of crashbars..
The best way (the way i did also)is to cut the old weak needles and use
a piece of stainless new.
the stick must take place with argon stuff.
the dimensions are 13cm x 3cm   with 0.5cm thickness.
The distance of the center of the 2 holes are at 10,5cm..
this way does not effect to the frame strength at all.
After the work is done it needs a paint with a aluminium spray..

hope it helped..

c u here

Sakis

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Date: Mon, 4 May 1998 08:45:28 +0200
From: Pagendarm@dlr.de (H.G.Pagendarm)
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To: xrv@normans.isd.uni-stuttgart.de
Subject: (XRV) fracture due to vibration
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Guys!

Yesterday I finally made up my mind to change oil in my RD04. I should
have done it earlier, but that's another story.

I had FIVE STARS crash bars mounted. In order to remove the engine
protector I had to remove the crash bars as well. They are fixed by
the two bolts which also hold the engine protector at the front part of 
the frame. These bolts go into nuts firmly attached to the frame.
I discovered one of these nuts fallen of the frame due to vibration
fracture and the second almost off.

I'd like to get you opinion on:
1. The best method for repair? Is there a risk to weaken the frame due to
   the high temperature when I try to attach new nuts to the frame?
2. Has anybody encountered similar fracture.
3. How to avoid the problem in the future.

I guess the problem is resulting from the crash bars. I rode the AT with
crashbars in place for less then 10 000 miles. When I first mounted the
crash bars I didn't notice any fractures. The AT had 10 000 miles on the
clock those days.
Interesting: I threw the bike once on her left side. So the left crash bar 
was slightly kinked. However, it was the right crash bar which had more 
severe vibrational damage.


Hans-Georg Pagendarm, Göttingen, Germany


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dipper@normans.isd.uni-stuttgart.de