How to bent seat rail

  • Ojisan rider
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05 May 2020 23:21 #825093 by Ojisan rider
How to bent seat rail was created by Ojisan rider
Aloha guys.

I need help with my seat rail. To make the long story short, I think my seat rail is bent just the little. Seat cowl is not evenly spaced, looking from behind, and seat have hard time locking. The bike never saw accident, but could have friend's car tapped from behind. So long ago, I can't remember.

Anyway, I need it to bend down a little. Is it possible? If so, just how do you do it? Frame is already painted, but I'm ready to bite the bullet. I didn't take any measurement, but I think I need to bend it down from little behind the shock mount.

82' KZ750-R1 cafe racer style. Clip-on, Rear set, Fork-Brace, Mikuni Flat-slide (forgot the size), Kerker.
84' GPz750 (basket case). everything are in pieces.
89' ZX750-H1 (ZX-7 Ninja). Resurrection project are on going with my KZ750. Everything is stock.

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06 May 2020 08:14 #825110 by 531blackbanshee
Replied by 531blackbanshee on topic How to bent seat rail
long wooden 2x4 wedged into the frame and tweaked back into place.

leon

skiatook,oklahoma 1980 z1r,1978 kz 1000 z1r x 3,
1976 kz 900 x 3
i make what i can,and save the rest!

billybiltit.blogspot.com/

www.kzrider.com/forum/5-chassis/325862-triple-tree-custom-work

kzrider.com/forum/5-chassis/294594-frame-bracing?limitstart=0

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06 May 2020 22:43 #825162 by Ojisan rider
Replied by Ojisan rider on topic How to bent seat rail
Is it/Would it be that easy? I'll give it a try for sure.

Thanks for the info.

82' KZ750-R1 cafe racer style. Clip-on, Rear set, Fork-Brace, Mikuni Flat-slide (forgot the size), Kerker.
84' GPz750 (basket case). everything are in pieces.
89' ZX750-H1 (ZX-7 Ninja). Resurrection project are on going with my KZ750. Everything is stock.

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07 May 2020 07:09 #825173 by 531blackbanshee
Replied by 531blackbanshee on topic How to bent seat rail
you will be surprised.
i just straightened up a harley fatboy frame that had flipped end over end down the ditch.by heating the forging's and beating it with a 3 foot long section of 4x4.the owner couldn't believe his eye's lol.

you may need to lever the 2x4 in and if it is not giving have someone else hit it in stategic areas with a section of 4x4 post.be careful as you don't want to bend or indent a tube so be mindful of what you are doing and go slow. lot's of eyeballing.that's all anyone is gonna use to check you anyway.

hth,

leon

skiatook,oklahoma 1980 z1r,1978 kz 1000 z1r x 3,
1976 kz 900 x 3
i make what i can,and save the rest!

billybiltit.blogspot.com/

www.kzrider.com/forum/5-chassis/325862-triple-tree-custom-work

kzrider.com/forum/5-chassis/294594-frame-bracing?limitstart=0

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07 May 2020 10:39 #825178 by davido
Replied by davido on topic How to bent seat rail
A Plumbers pipe bender. If you can get it on, a bit more subtle than whacking it with a hammer.

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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07 May 2020 11:26 #825180 by loudhvx
Replied by loudhvx on topic How to bent seat rail
Like Leon said, my go-to is 2 x 4's and pipe clamps.

Here I had the opposite problem. the rear was sagging down on one side.

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07 May 2020 23:01 #825210 by Ojisan rider
Replied by Ojisan rider on topic How to bent seat rail
Thanks guys for all that info.

I'll try the easiest first, which is the 4x4 or 2x4 method. Never thought about pipe bender. I do have one that'll fit 1/2 pipe, so I'll give a try if the wood method won't do it. Should be able to get the bender.

In any case, I'll be sure to post the result. Once again, thanks guys.

82' KZ750-R1 cafe racer style. Clip-on, Rear set, Fork-Brace, Mikuni Flat-slide (forgot the size), Kerker.
84' GPz750 (basket case). everything are in pieces.
89' ZX750-H1 (ZX-7 Ninja). Resurrection project are on going with my KZ750. Everything is stock.

Please Log in or Create an account to join the conversation.

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