Honda-SOHC
SOHC.co.uk Forums => CB750 => Topic started by: haynes66 on July 11, 2016, 09:06:04 PM
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having been a big rally fan in the 70's i was intrigued to see a pic of a 750 fitted with a pair of weber DCOE 40 carbs which i assumed were only fitted to cars. anyone ever fitted some to theirs? according to google it seems to have been a common mod on 750 drag bikes. looks interesting though.
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Had twin 40s on my Talbot Sunbeam Ti but never heard of them on a bike. Imagine it wouldn't be great around town ???
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I've seen them in the past more in American bike mags of that era, they do look quite good.
As far as I can remember they had a bespoke cast alloy manifold to mount them to but other than that it must just be setup as I know you can change the venturi size for your specific application. They are also normally mounted with a o-ring type seal and clamped with a thackery? type washer to avoid transmitting engine vibrations to the carbs as I understand it.
Haynes, you live in the right area to see rally stages I guess, I've spent many an hour years ago watching rally cars in Welsh forests.
Wolfeze, those talbots were quite a quick car and handled well too, I navigated on a couple of tarmac rally events in one some time ago.
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Sunbeam was a great car.Appalling build quality and tinworm but still a great car. Aspired to a sunbeam lotus but they were far too expensive for a 23 year old.
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Just googled this out of interest and fair bit on sister US SOHC site.
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My brother had two twin choke Dell Orto's fitted on a KB3 years ago, needless to say it was very fast and very thirsty, a great bike in it's time
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have a look at this
http://www.caferacer.net/forum/project-builds/24873-rebuild-rc-engineering-weber-set-up-cb750-honda.html
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good article john, thanks.