Cap Fork Top
- gordone
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Cap Fork Top
05 Feb 2018 02:09 - 05 Feb 2018 02:10
I have rebuild my front forks with new good parts. I have a question for my new Cap Fork Top (Kawa 440291005), see attached picture.
I don`t have the air valve... what shall I do? what bolt can I use, is there special threads, I tried different sizes, but they are not fit 100%... ?
My plan is to install air valves later when I`m able to get 2, but for now is the plan jus to bolt of the wholes...
I can see that the end of the whole is graded in buttom?
Thank you all for helping me out.
I don`t have the air valve... what shall I do? what bolt can I use, is there special threads, I tried different sizes, but they are not fit 100%... ?
My plan is to install air valves later when I`m able to get 2, but for now is the plan jus to bolt of the wholes...
I can see that the end of the whole is graded in buttom?
Thank you all for helping me out.
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
Last edit: 05 Feb 2018 02:10 by gordone.
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- martin_csr
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Re: Cap Fork Top
05 Feb 2018 06:31 - 05 Feb 2018 09:48
I would take the air valve & fork cap to the hardware to see if you can figure out the size.
The 10mm headlight bolt of my 81 650-CSR seems to be a good fit into the air valve orifice. see pic.
I don't know what the thread pitch is. If you find something that fits, teflon tape could be used to seal the threads.
The 10mm headlight bolt of my 81 650-CSR seems to be a good fit into the air valve orifice. see pic.
I don't know what the thread pitch is. If you find something that fits, teflon tape could be used to seal the threads.
Last edit: 05 Feb 2018 09:48 by martin_csr.
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- gordone
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Re: Cap Fork Top
05 Feb 2018 22:39martin_csr wrote: I would take the air valve & fork cap to the hardware to see if you can figure out the size.
The 10mm headlight bolt of my 81 650-CSR seems to be a good fit into the air valve orifice. see pic.
I don't know what the thread pitch is. If you find something that fits, teflon tape could be used to seal the threads.
Hem I think I tested 10mm, I will do again... So I don`t need to be afraid to damage the seat in the buttom of the whole?
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
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- martin_csr
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Re: Cap Fork Top
06 Feb 2018 06:45 - 06 Feb 2018 07:22
Maybe the bolt you checked had the wrong thread pitch?
I'm pretty sure the metric thread pitch on mine is 1.25 mm between threads.
standard pitch = 1.50 .... fine = 1.25 ... extra-fine = 1.00 ... JIS = 1.25 ... note: JIS = Japanese Industrial Standard
As for the bottom of the orifice, I don't think the air valve seats or seals there. The air valve has an o-ring.
Measure the depth of the orifice. also, look at how it's drilled at the bottom.
The 650-csr orifice is about 14mm deep. but the air valve threads are 10 mm in length.
I'm not sure how I'd do it, but you could try a socket screw or maybe a set screw. add washers &/or an o-ring as necessary.
Install the screw w teflon tape on the threads. with a set screw maybe put a small o-ring in the hole first.
The smallest available M10 socket screw is probably M10 x 16mm L.
M10*1.25 Pitch Fine Stainless 304 Allen Socket Cap Head Screws Bolt
Stainless Steel Button Head Screws A2 Hex Socket Bolts M3/M4/M5/M6/M8/M10 >>> Thread pitch not listed. ???
specialty set screw >>> ball point grub screw not recommending it. I just now stumbled across it on eb. the ball end is spring-loaded.
...
I'm pretty sure the metric thread pitch on mine is 1.25 mm between threads.
standard pitch = 1.50 .... fine = 1.25 ... extra-fine = 1.00 ... JIS = 1.25 ... note: JIS = Japanese Industrial Standard
As for the bottom of the orifice, I don't think the air valve seats or seals there. The air valve has an o-ring.
Measure the depth of the orifice. also, look at how it's drilled at the bottom.
The 650-csr orifice is about 14mm deep. but the air valve threads are 10 mm in length.
I'm not sure how I'd do it, but you could try a socket screw or maybe a set screw. add washers &/or an o-ring as necessary.
Install the screw w teflon tape on the threads. with a set screw maybe put a small o-ring in the hole first.
The smallest available M10 socket screw is probably M10 x 16mm L.
M10*1.25 Pitch Fine Stainless 304 Allen Socket Cap Head Screws Bolt
Stainless Steel Button Head Screws A2 Hex Socket Bolts M3/M4/M5/M6/M8/M10 >>> Thread pitch not listed. ???
specialty set screw >>> ball point grub screw not recommending it. I just now stumbled across it on eb. the ball end is spring-loaded.
...
Last edit: 06 Feb 2018 07:22 by martin_csr.
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- gordone
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Re: Cap Fork Top
10 Feb 2018 09:07
It was 10mm and normal threats as you said Martin, thank your for your inputs.
Today have I installed bolts with teflon, I think that is good enough?
See attached photo.
Today have I installed bolts with teflon, I think that is good enough?
See attached photo.
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
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- Scirocco
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Re: Cap Fork Top
10 Feb 2018 09:21
No eBay APP ID and/or Cert ID defined in Kunena configurationI would use these kind of stainless M10 screws, looking a way better (invisible).
My 1975 Z 1 B 900 Project
www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode
www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode
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- gordone
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Re: Cap Fork Top
10 Feb 2018 09:24
Thank you, really good input !
He was not shipping to Norway, but has sent him a message.
He was not shipping to Norway, but has sent him a message.
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
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- Scirocco
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Re: Cap Fork Top
10 Feb 2018 09:34
They should be available in a nuts and bolt shop in Norway.
I pay only 99 cent for 20 of them in my local shop, buy all my stainless screws their.
It is like a screw paradise.
I pay only 99 cent for 20 of them in my local shop, buy all my stainless screws their.
It is like a screw paradise.
My 1975 Z 1 B 900 Project
www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode
www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode
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- gordone
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Re: Cap Fork Top
11 Feb 2018 01:56
What do you call screws like these in English?
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
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- gordone
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Re: Cap Fork Top
11 Feb 2018 02:08
I have found now
thank you for these input, it will be nicer look on the bike now
![:) :)](/media/kunena/emoticons/8.png)
![:) :)](/media/kunena/emoticons/8.png)
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
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- Scirocco
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Re: Cap Fork Top
11 Feb 2018 05:37
We here in Germany call them Madenschraube = maggot screw
My 1975 Z 1 B 900 Project
www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode
www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode
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- TexasKZ
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Re: Cap Fork Top
11 Feb 2018 06:01gordone wrote: What do you call screws like these in English?
Usually, socket set screw, or just set screw.
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
www.kzrider.com/11-projects/620336-anoth...uild-thread?start=24
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
www.kzrider.com/11-projects/620336-anoth...uild-thread?start=24
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