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PostPosted: Mon Aug 07, 2017 6:16 pm 
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Joined: Mon Jun 13, 2011 7:14 pm
Posts: 936
Location: Martinsburg, WV
If worse comes to worse, I can have the top support welded like the one on the bottom. That would probably shore it up a bit. :thumbup:

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74 H2B with reeds and 34mm carbs
75 S3A Ram Air with reeds and 30mm carbs
73 S2A (wife's bike)
71 Yammi RT1B
83 HD Sportster
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06 Kaw 750 Vulcan (wife’s bike)
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PostPosted: Mon Sep 18, 2017 5:03 pm 
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Joined: Mon Jun 13, 2011 7:14 pm
Posts: 936
Location: Martinsburg, WV
Dang it. :banghead

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74 H2B with reeds and 34mm carbs
75 S3A Ram Air with reeds and 30mm carbs
73 S2A (wife's bike)
71 Yammi RT1B
83 HD Sportster
03 Yammi R1
06 Kaw 750 Vulcan (wife’s bike)
12 Yammi vstar 250 (wife’s bike)


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PostPosted: Mon Sep 18, 2017 5:38 pm 
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Joined: Mon Jun 13, 2011 7:14 pm
Posts: 936
Location: Martinsburg, WV
Pic of the underside. I'd say there was about 1/4 of the metal still holding it together. :thumbdown:

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_________________
74 H2B with reeds and 34mm carbs
75 S3A Ram Air with reeds and 30mm carbs
73 S2A (wife's bike)
71 Yammi RT1B
83 HD Sportster
03 Yammi R1
06 Kaw 750 Vulcan (wife’s bike)
12 Yammi vstar 250 (wife’s bike)


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PostPosted: Mon Sep 18, 2017 8:40 pm 
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Joined: Wed Jun 08, 2011 10:08 pm
Posts: 1901
Location: Campbellville Ontario
Is there a way to "soft mount" the cans with strong springs, so the vibration won't transfer to the pipe?


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PostPosted: Tue Sep 19, 2017 12:42 pm 
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Joined: Mon Jun 13, 2011 7:14 pm
Posts: 936
Location: Martinsburg, WV
Unfortunately not with the way these pipes are built without needing major alterations. I did get it welded again this morning and they told me they had to make 3 passes to get it shut. After he welded the crack, it cracked again right beside it i reckon from the heat and metal expansion of the weld. If it cracks again, I may have to gusset it or cut some plate to go over the whole end from half the cone to the mount. Weird thing is only this one pipe is affected. The other two have been fine.

_________________
74 H2B with reeds and 34mm carbs
75 S3A Ram Air with reeds and 30mm carbs
73 S2A (wife's bike)
71 Yammi RT1B
83 HD Sportster
03 Yammi R1
06 Kaw 750 Vulcan (wife’s bike)
12 Yammi vstar 250 (wife’s bike)


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PostPosted: Tue Sep 19, 2017 12:51 pm 

Joined: Thu Jun 09, 2011 11:25 am
Posts: 3137
Whenever I set a set of pipes up as far as mounting, I make sure the pipe itself can move in all directions freely when mounted up. If not, there will be a conflict in that the pipe fights one mounting style, free at the adapter on the engine, and fully tight, or severely compromised at its rear, "to frame" mounting.

I literally grab the pipe and make sure it is free to move in all directions, not bind up in any direction, no matter if the engine is solid, or rubber mounted. The pipes should literally 'free float' on the bike, so stresses are not induced into the pipe metals, and/or welds.


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PostPosted: Tue Sep 19, 2017 6:51 pm 

Joined: Tue Jul 24, 2012 6:06 pm
Posts: 1135
Location: Honolulu
H2RTuner wrote:
Whenever I set a set of pipes up as far as mounting, I make sure the pipe itself can move in all directions freely when mounted up. If not, there will be a conflict in that the pipe fights one mounting style, free at the adapter on the engine, and fully tight, or severely compromised at its rear, "to frame" mounting.

I literally grab the pipe and make sure it is free to move in all directions, not bind up in any direction, no matter if the engine is solid, or rubber mounted. The pipes should literally 'free float' on the bike, so stresses are not induced into the pipe metals, and/or welds.

That's what I did after my KH400 K2tek pipe broke. All three pipes have lots of play and hopefully will avoid another break. The noise is unbearable to me, even on these little 400's.


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