Such sad news....

  • SWest
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Re: Re:Such sad news....

09 May 2015 20:56
#671310
So do you have a frame picked out?
Steve

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  • Nebr_Rex
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Re: Such sad news....

10 May 2015 06:31 - 10 May 2015 06:33
#671349


Three things I see that concern me that I would change.
1) that weld looks like #$%&.
2) the wall thickness of the tubing is really thin.
3) a gusset is needed on that joint.


.,
2002 ZRX1200R
81 GPz1100
79 KZ1000st daily ride
79 KZ1000mk2 prodject
78 KZ650sr
78 KZ650b
81 KZ750e
80 KZ750ltd
77 KZ400/440 cafe project
76 KZ400/440 Fuel Injected

www.dotheton.com/forum/index.php?topic=39120.0


.

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Last edit: 10 May 2015 06:33 by Nebr_Rex. Reason: forgot pic
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  • KzChop82
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Re: Re:Such sad news....

10 May 2015 07:06
#671356
Nebr_Rex wrote:

Three things I see that concern me that I would change.
1) that weld looks like #$%&.

The weld is fine- it's bonded so well that the station pipe is actually taking a chunk out of the backbone.

2) the wall thickness of the tubing is really thin.

Agreed- already discussed this with them.
3) a gusset is needed on that joint.
It's a good idea in theory- but the reality is, that area would be difficult. The angle ~155*




.,
Clinton, NJ
Custom chopper, 1982 KZ 1000 M2 CSR engine, K&N Pod Filters

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  • davido
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Re: Re:Such sad news....

10 May 2015 12:45
#671393
A bit of Gaffer tape and youll be fine.
www.kzrider.com/forum/11-projects/594313-csr1000-project-build
CB550 (1978)
CB500/4 (1972)*
KZ1000CSR (1981)
XT 600E (1999)
TDM900 (2003)

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Re: Re:Such sad news....

10 May 2015 12:54
#671394
It wouldn't have left my bench like that but that's not the problem. From time to time we would have to put one of our parts in a vise and try to break the welds. This one passed. The material failed. With a little beefing up it might be good to go as long as the metal is sound.
Steve

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Re: Re:Such sad news....

10 May 2015 13:56
#671406
KzChop82 wrote:
Nebr_Rex wrote:

Three things I see that concern me that I would change.
1) that weld looks like #$%&.

The weld is fine- it's bonded so well that the station pipe is actually taking a chunk out of the backbone.

2) the wall thickness of the tubing is really thin.

Agreed- already discussed this with them.
3) a gusset is needed on that joint.
It's a good idea in theory- but the reality is, that area would be difficult. The angle ~155*






.,

Nonsense, no amount of engineering or fabrication is to difficult when your neck is on the line.


.
2002 ZRX1200R
81 GPz1100
79 KZ1000st daily ride
79 KZ1000mk2 prodject
78 KZ650sr
78 KZ650b
81 KZ750e
80 KZ750ltd
77 KZ400/440 cafe project
76 KZ400/440 Fuel Injected

www.dotheton.com/forum/index.php?topic=39120.0


.

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  • SWest
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Re: Re:Such sad news....

10 May 2015 16:25
#671422
That glob of weld is from pulling away at the end of the weld. Poor form. It should have been reversed at the end.
Steve

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  • KzChop82
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Re: Re:Such sad news....

11 May 2015 05:10
#671486
Nebr_Rex wrote:
KzChop82 wrote:
Nebr_Rex wrote:

Three things I see that concern me that I would change.
1) that weld looks like #$%&.

The weld is fine- it's bonded so well that the station pipe is actually taking a chunk out of the backbone.

2) the wall thickness of the tubing is really thin.

Agreed- already discussed this with them.
3) a gusset is needed on that joint.
It's a good idea in theory- but the reality is, that area would be difficult. The angle ~155*






.,

Nonsense, no amount of engineering or fabrication is to difficult when your neck is on the line.


.
Let's say you're right...
Pretty sure my frame is still fuc%€ed.

Don't mean to be harsh. I'm just so pissed about it.
Clinton, NJ
Custom chopper, 1982 KZ 1000 M2 CSR engine, K&N Pod Filters

PICTURES AND GOPRO VIDEOS!! :
www.dropbox.com/sh/jipz3l8nhzr4jge/AABbm...OC3sqlhCSLxH5Fa?dl=0

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  • SWest
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Re: Re:Such sad news....

11 May 2015 05:50
#671493
I don't blame you. Your life was depending on the quality of that frame. If you don't mind my asking, where did you get it? Foreign or domestic?
Steve

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Re: Re:Such sad news....

11 May 2015 05:59 - 11 May 2015 06:00
#671496
Personally, I think it's asking a lot to have a single downtube / single backbone frame handle the weight and power of a KZ1000 engine. I'm not saying it's a physical impossibility, I'm only suggesting that if it is not designed by an engineer who thoroughly understands the dynamics and forces that will be applied the chance of failure would seem to be pretty high. I notice Kawasaki did not build them that way even though it may have been cheaper and lighter. Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
Last edit: 11 May 2015 06:00 by 650ed.

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  • SWest
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Re: Re:Such sad news....

11 May 2015 06:25
#671502
When I first saw the bike I thought, that can't work. I didn't say anything because I didn't want to belittle his bike. Judging by the lack of quality of the weld, makes me question the quality of the metal. :dry:
Steve

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Re: Re:Such sad news....

11 May 2015 07:11
#671512
Domestic, cycle one manufacturing.
They have been great throughout this whole process, by the way.
Clinton, NJ
Custom chopper, 1982 KZ 1000 M2 CSR engine, K&N Pod Filters

PICTURES AND GOPRO VIDEOS!! :
www.dropbox.com/sh/jipz3l8nhzr4jge/AABbm...OC3sqlhCSLxH5Fa?dl=0

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