Rust and pitting on fork tubes
- ckahleer
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Rust and pitting on fork tubes
03 Jul 2023 20:18
I was looking to replace the fork tubes on my recently acquired 79 KZ400, but the used ones I see on E-bay don't look much better than mine. I don't want to put the money into NOS tubes. The section of tube that slide on the seals are OK.
My plan is to put on Gator fork boots and chrome vinyl wrap on the tubes between the triple tree clamps. I'm not restoring this bike, just want it to look better as an occasional errand runner.
Any other ideas I should consider?
My plan is to put on Gator fork boots and chrome vinyl wrap on the tubes between the triple tree clamps. I'm not restoring this bike, just want it to look better as an occasional errand runner.
Any other ideas I should consider?
94 KE100
82 KZ305
85 VF1100c
82 KZ305
85 VF1100c
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- Wookie58
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Re: Rust and pitting on fork tubes
03 Jul 2023 23:36 - 03 Jul 2023 23:37
You could sand them with 1000 grit (not the the functional section that runs through the seals) apply a rust-inhibitor and then polish. Would make them look a lot better and slow the rusting process
1982 KZ1000 Ltd
www.kzrider.com/forum/11-projects/617631...-82-begins?start=192
kzrider.com/filebase-alias?view=download...d-fault-diagnosis&ca
www.kzrider.com/forum/11-projects/617631...-82-begins?start=192
kzrider.com/filebase-alias?view=download...d-fault-diagnosis&ca
Last edit: 03 Jul 2023 23:37 by Wookie58.
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- hardrockminer
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Re: Rust and pitting on fork tubes
04 Jul 2023 03:33
Maybe a new seat cover?
I have several restored bikes along with a 2006 Goldwing with a sidecar. My wife has a 2019 Suzuki DR 650 for on and off road.
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- Wookie58
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Re: Rust and pitting on fork tubes
04 Jul 2023 03:39Maybe a new seat cover?
1982 KZ1000 Ltd
www.kzrider.com/forum/11-projects/617631...-82-begins?start=192
kzrider.com/filebase-alias?view=download...d-fault-diagnosis&ca
www.kzrider.com/forum/11-projects/617631...-82-begins?start=192
kzrider.com/filebase-alias?view=download...d-fault-diagnosis&ca
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- ThatGPzGuy
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Re: Rust and pitting on fork tubes
04 Jul 2023 05:22
I would definitely try to sand out the rust. You'll still have pitting but I've heard of a technique where you sand with crumpled up aluminum foil and WD40 to remove some of the pitting. It's worth a try.
Jim
North GA
2016 Yamaha FJR1300ES
1982 GPz750 R1
1974 Kawasaki H1
1976 Kawasaki KZ400
1979 Yamaha XS650 cafe'
2001 KZ1000P
2001 Yamaha YZ426
1981 Honda XR200 stroked in an '89 CR125 chassis
1965 Mustang
1967 Triumph GT6
1976 Bronco
"If you didn't build it, it's not really yours"
North GA
2016 Yamaha FJR1300ES
1982 GPz750 R1
1974 Kawasaki H1
1976 Kawasaki KZ400
1979 Yamaha XS650 cafe'
2001 KZ1000P
2001 Yamaha YZ426
1981 Honda XR200 stroked in an '89 CR125 chassis
1965 Mustang
1967 Triumph GT6
1976 Bronco
"If you didn't build it, it's not really yours"
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- martin_csr
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Re: Rust and pitting on fork tubes
04 Jul 2023 05:36 - 04 Jul 2023 05:51
Did you try searching KZ440 forks? In case you aren't aware, the 400 Ltd has the same fork tubes as a number of 440 Ltds, so there should be more available for the 440.
Last edit: 04 Jul 2023 05:51 by martin_csr.
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- urankjj
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Re: Rust and pitting on fork tubes
04 Jul 2023 06:03
On the forks you could try soaking with wd-40 or simular, and then using some 0000# grade steel wool and metal polish. Make sure you use only 0000# steel wool. I have used it on both chrome parts and glass windshields with no scratching at all and excellent results.
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- Warren3200gt
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Re: Rust and pitting on fork tubes
04 Jul 2023 07:25 - 04 Jul 2023 07:28
Yep, ultra fine steel wool and chrome cleaner then seal with a wax.
Battery acid burns on an original 650 exhaust.
After
Before
Battery acid burns on an original 650 exhaust.
After
Before
Last edit: 04 Jul 2023 07:28 by Warren3200gt.
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- Nessism
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Re: Rust and pitting on fork tubes
04 Jul 2023 07:58
No disrespect to Warren, but notice the scratching in the After photo. That's why I use straight chrome cleaner on a rag, and rotate the rag often, otherwise you will be grinding oxide material into the chrome, scratching it. Good news with fork tubes, though, is they are HARD chromed, not cosmetic chrome like an exhaust pipe. You won't scratch hard chrome nearly as easily, so the 0000 steel wool will be okay.
Ed
Carb O-ring Kits : www.kzrider.com/forum/3-carburetor/61807...-o-ring-kits?start=0
www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know
1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread
Carb O-ring Kits : www.kzrider.com/forum/3-carburetor/61807...-o-ring-kits?start=0
www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know
1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread
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- Warren3200gt
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Re: Rust and pitting on fork tubes
04 Jul 2023 08:11 - 04 Jul 2023 08:12Nessism, are you looking at them the right way round? The After pic is the top one.No disrespect to Warren, but notice the scratching in the After photo.
The scratches and majority of the acid burn discoloration on the before pic are all but gone on the after (top) pic.
Admittedly not 100% but loads better.
Zoom in on each pic to clearly see how diminished they are.
Last edit: 04 Jul 2023 08:12 by Warren3200gt.
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- hardrockminer
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Re: Rust and pitting on fork tubes
04 Jul 2023 17:05He asked...any other ideas I should consider? I thought I'd inject a little humour!Maybe a new seat cover?
As for the fork uppers...they are hard chromed. Some shops will re-chrome them. Most won't. A new set probably costs around $100 US.
I have several restored bikes along with a 2006 Goldwing with a sidecar. My wife has a 2019 Suzuki DR 650 for on and off road.
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- ckahleer
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Re: Rust and pitting on fork tubes
04 Jul 2023 20:12Is this more humour?A new set probably costs around $100 US.
94 KE100
82 KZ305
85 VF1100c
82 KZ305
85 VF1100c
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