CV Carb queston

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George Butz
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CV Carb queston

Post by George Butz » Fri Oct 26, 2012 11:00 am

The 07's carbs have always performed great after Gene re-jetted them. :)
I have torn down the rig and am checking the carbs out and cleaning the float bowls etc.
When opening the top cover the diaphragm seems misshapen and it is not going to seal around the lip of the casting I don't think.
Is it time to just replace them or is there a trick to getting them back in and sealing the lid? :?
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Re: CV Carb queston

Post by gobium » Fri Oct 26, 2012 11:08 am

Put in front fan, let it dry, will shrink back to shape

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Re: CV Carb queston

Post by George Butz » Fri Oct 26, 2012 11:14 am

gobium wrote:Put in front fan, let it dry, will shrink back to shape
I figured they had to be a trick. They show no sign of deterioration.
I will try that...Thanks
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berger
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Re: CV Carb queston

Post by berger » Fri Oct 26, 2012 12:07 pm

...or just let it sit overnight. It is saturated with gas.
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Re: CV Carb queston

Post by GHGoodwin » Fri Oct 26, 2012 12:44 pm

Fill the groove with vaseline or grease. It'll hold the rim in so you can fasten the top.
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George Butz
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Re: CV Carb queston

Post by George Butz » Fri Oct 26, 2012 6:24 pm

Thank you all...They dried out and now go where they a supposed to.

And a little grease will keep it "in the groove"..... :D
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Re: CV Carb queston

Post by RidesInRed » Fri Oct 26, 2012 8:48 pm

That's that $#!+ gasohol. Real gasoline doesn't do that to rubber diaphragms.
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Re: CV Carb queston

Post by cdscoot » Fri Oct 26, 2012 9:47 pm

George Butz wrote:
gobium wrote:Put in front fan, let it dry, will shrink back to shape
I figured they had to be a trick. They show no sign of deterioration.
I will try that...Thanks
Gotta wait for the Viagara to wear off ! :lol: :lol: They shrink, get floppy , fall in place !
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Re: CV Carb queston

Post by n3303j » Sat Oct 27, 2012 4:48 am

George Butz wrote:Thank you all...They dried out and now go where they a supposed to.

And a little grease will keep it "in the groove"..... :D
Don't know if grease is good for the rubber. A bit of care and they install fine dry. Matter of fact I've removed/replaced the diaphrams a few times and had no problem doing the reinstall within minutes. Just requires a gentle touch and a bit of attention. Gravity will do the rest.
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Re: CV Carb queston

Post by threewheeler » Sat Oct 27, 2012 11:52 am

Hi guys,

Beware of using vaseline on rubber. My Dad worked for the London Rubber Company in the late 60s and I was curious about all the boxes of samples in the garage.

Yes, they made durex and his words of wisdom to me then ( when I was about 12!) is that vaseline causes rubber to deteriorate

I knew if I waited long enough that information would turn out to be useful!

All the best,
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Re: CV Carb queston

Post by threewheeler » Sat Oct 27, 2012 11:53 am

Forgot to say. If you want to lubricate rubber parts on a motorcycle use plumbers silicon spray.
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