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TOPIC: DIY rubber gaskets made out of bicycle innertube?

DIY rubber gaskets made out of bicycle innertube? 6 years 10 months ago #380712

  • kz.chris
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Has anyone ever tried this on a set of carbs?

I'm doing an entire tear down/rebuild of a 4 carb assembly i got off ebay.

I will already have to make a few parts on a lathe and i figure if I can save a few bucks on gaskets why not.

the entire assembly only cost me $20 bucks so if i can get away with something that works well and keep the entire project under 50 bucks ill be very happy.

Any other thoughts or ideas?

Thanks

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1977 Kawasaki KZ650

DIY rubber gaskets made out of bicycle innertube? 6 years 10 months ago #380724

  • bountyhunter
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Inner tube rubber will disintegrate if hit by gasoline. I have used it to make vibration damper type gaskets for mounting the odd piece, but nothing related to fuel.

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1979 KZ-750 Twin

DIY rubber gaskets made out of bicycle innertube? 6 years 10 months ago #380727

  • kz.chris
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bountyhunter wrote:

Inner tube rubber will disintegrate if hit by gasoline. I have used it to make vibration damper type gaskets for mounting the odd piece, but nothing related to fuel.


i was afraid of that.

i just picked up some gaskets from z1.

thanks

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1977 Kawasaki KZ650

DIY rubber gaskets made out of bicycle innertube? 6 years 10 months ago #380790

  • loudhvx
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Yeah, even just being exposed to sunlight for 8 hours or so degrades an inner tube. I used them to hold some turn signals together. By the end of one day you could see the rubber cracking.

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DIY rubber gaskets made out of bicycle innertube? 6 years 10 months ago #380798

  • TeK9iNe
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OEM, or better.

If you keep it under $50, you might have some kind of guiness record or something! :laugh:

B)

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Motorcycle Shop Owner/Operator

79 Kawie Z1000 LTD
81 Kawie Z1000 CSR
83 Honda VT750C A
85 Kawie GPZ900 A2
86 Zukie GS1150 EG
93 Yamie XV1100 E
Lucky to have rolled many old bikes through my doors ;)

DIY rubber gaskets made out of bicycle innertube? 6 years 10 months ago #380848

  • mjkawa
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I was thinking of the same thing for gaskets between the carb holders, and the head.
Is this totally crazy?
They wont see any sunlight, but will see some gas, and heat.

Existing carb holders seem ok, with little indentations from where they were mounted. And I definately have air leak on the intake.
Just trying to save $80 for some new ones from z1e.

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82 KZ-1000-J
77 KZ650 B

DIY rubber gaskets made out of bicycle innertube? 6 years 10 months ago #380864

  • loudhvx
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Why not just get some legitimate gasket material? I made some out of paper material that worked fine (between carb holders and the head). There are other materials that may be better than paper, like the rubber-impregnated cork gasket material available at most auto parts stores. It was like $5 for 1 or 2 square feet.

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DIY rubber gaskets made out of bicycle innertube? 6 years 10 months ago #380936

  • TerryK
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mjkawa wrote:

I was thinking of the same thing for gaskets between the carb holders, and the head.
Is this totally crazy?
They wont see any sunlight, but will see some gas, and heat.

Existing carb holders seem ok, with little indentations from where they were mounted. And I definately have air leak on the intake.
Just trying to save $80 for some new ones from z1e.


You cant be that cheap, spend the 80 bucks and fix it PROPERLY. You'll thank me later.

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1977 KZ1000
GSXR swingarm and rear brake
WM6 rear Akront rim
Wiseco 1075c pistons
34mm Mikuni flat slide carbs
Dyna S ignition
Lockhart oil cooler
Wiseco pipe

Ontario, Canada
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