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Fairing repair

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05 Dec 2021 20:08 #858665 by woodyvale
Fairing repair was created by woodyvale
Hi all,

I'm about to start renovating an 84 GPZ uni fairing. It will have a full repaint once prepared.

It has a few cracks that need fixing and a cracked bottom mount, which I want to do myself.

I could send it away to a pro, but here in Oz, that is likely to cost more than what the fairing is worth.

What's the best method for fixing and strengthening the cracks.

Would fibreglassing stick to it - it looks like some sort of plastic or is plastic welding the way to go.

I realise I'm going to get a few different answers but just curious as to what other folk have had success with.

Cheers!

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05 Dec 2021 20:38 #858667 by Stereordinary
Replied by Stereordinary on topic Fairing repair
I don’t know if all years of all bikes are the same, but in my experience Kawasaki fairings are typically made from ABS plastic. Consider this good news, because repairing cracks and breaks can be very easy. The best adhesive to use is simply acetone and more ABS plastic. Get your hands on a spare bike fairing, or virtually any other plastic object that you can verify is ABS, and use cutters/saws/scissors/your kung-fu technique to chop it up into small pieces, place those pieces into a jar or polyethylene container and pour some acetone over them. Wait for a day for the pieces to melt, stir, and add more pieces or more acetone until you have a “glue-like” consistency. Voila, you’ve just created the best glue you can use on ABS plastic. Apply as needed, wait for it to cure, sand any excess down smooth and you’re done, good as new. 

A breeze from the west.
‘90 ZR550 Zephyr
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06 Dec 2021 13:09 #858690 by KZQ
Replied by KZQ on topic Fairing repair
Please check out:
www.kzrider.com/articles/technical-tips/...ir-first-timeforever
The title says it all.
Bill

www.KZ1300.com
Riders:
1968 BSA 441 Shooting Star, 1970 BSA 650 Lightning, 1974 W3, 1976 KZ900, 1979 KZ750 Twin, 1979 KZ750 Twin Trike, 1981 KZ1300, 1982 KZ1100 Spectre, 2000 Valkyrie, 2009 Yamaha Roadliner S. 1983 GL 1100
Projects:
1985 ZN1300
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06 Dec 2021 13:47 #858691 by BobZ
Replied by BobZ on topic Fairing repair
I've done the ABS shavings in Acetone method.....JB Weld for Plastic as well.  Both seemed to hold up ok.  I lost a lid to my saddlebag on my old Goldwing and it got smashed.  I rebuilt it with ABS cement and plastic window screen.  I only intended it to be a temporary fix until i found a replacement in the proper color for a reasonable price. That was about 2 or 3 years ago and it's still holding up.  I sanded it out better and found a closer color of paint after the last picture

Had I known I'd live this long I'd have taken better care of my Led Zeppelin albums


1983 Goldwing Interstate
1982 KZ750 LTD
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06 Dec 2021 14:08 #858694 by ThatGPzGuy
Replied by ThatGPzGuy on topic Fairing repair
Had I known I'd live this long I'd have taken better care of my Led Zeppelin albums

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"
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06 Dec 2021 15:10 #858697 by woodyvale
Replied by woodyvale on topic Fairing repair
Great info there guys, very helpful.

Thanks for the link Bill. I hadn.t thought to use glass fibre sheets with cement other than glass fibre resin.

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06 Dec 2021 16:23 #858700 by KZQ
Replied by KZQ on topic Fairing repair

Great info there guys, very helpful.

Thanks for the link Bill. I hadn.t thought to use glass fibre sheets with cement other than glass fibre resin.
 
You're welcome there WV.
Easy readily available materials and couldn't be better suited to the project.
Bill

www.KZ1300.com
Riders:
1968 BSA 441 Shooting Star, 1970 BSA 650 Lightning, 1974 W3, 1976 KZ900, 1979 KZ750 Twin, 1979 KZ750 Twin Trike, 1981 KZ1300, 1982 KZ1100 Spectre, 2000 Valkyrie, 2009 Yamaha Roadliner S. 1983 GL 1100
Projects:
1985 ZN1300

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13 Dec 2021 07:10 #858996 by PaintWorkz
Replied by PaintWorkz on topic Fairing repair
Plastic welding with a flat tip in a soldering gun works well from the back side to save paint, or weld from both sides if you are repainting. 

www.paintworkz.com

84 Gpz900 street
77 KZ 1325 Turbo Dragbike project
79 CBX Pro Stock projects (2)
78 Z1R-TC AMA & ECTA LSR record holder
68 750 Enfield Brat project
82 750 Nourish Triumph LSR
Lake Havasu City, AZ
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15 Dec 2021 06:27 #859095 by ThatGPzGuy
Replied by ThatGPzGuy on topic Fairing repair
I've seen ABS cement sold in the plumbing aisle at the local hardware store. Is this a suitable substitute to acetone+ABS mix? 

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"

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15 Dec 2021 10:04 #859106 by ghostdive
Replied by ghostdive on topic Fairing repair

I've seen ABS cement sold in the plumbing aisle at the local hardware store. Is this a suitable substitute to acetone+ABS mix? 
I tried some when I was repairing my Vetter fairing and the results were...not awesome. YMMV. 

1982 KZ750 Spectre - 6 speed swap, BS34s, 18" rear wheel

2001 ZX-6R

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  • 10 22 2014
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15 Dec 2021 10:29 #859109 by SWest

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