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AlteWagen
Troll
Joined: February 23, 2007
Posts: 8692
Location: PNW
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slayer61
Samba Member
Joined: June 01, 2021
Posts: 1148
Location: CA
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 Posted: Fri Dec 01, 2023 3:53 pm Post subject: Re: Official Dual Carburetor How To Thread |
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| Backtotheeightiesagain wrote: |
At least 50%of the problems with aftermarket carbs are the linkage they come with. You can set it OK at idle, or maybe full throttle. But not everywhere. Then as you use it wear changes everything.
An idea that will never catch on as there is no money or profit for manufacturing companies is this.
With one throttle pedal attach two cables. One cable going directly to each carb (pivot). No swivels/arms/bars.
1)cheaper. Cost of two probably longer cables.
2)each cable has 50% less strain
3)pulls same both carbs, not possible to be uneven. Still could have threaded bicycle end fine adjuster.
4)looks tidier/less clutter if you show your vw.
5)less moving parts=less to fail.
Yes don't try it and I'm sure 99% won't. Mainly because no one ever has( one day with spare time I will....whatever I got to loose) . |
| pierrox wrote: |
I bélieve such a thing exists, but at a rather steep price.
Having said that, it would be easy to make one yourself. You'll just need to source a cable coupler from a flat twin BMW motorbike - the R series - as they use such system. |
pierrox and jeffery are both missing the point. Backtotheeighties is talking about using 2 (two) cables. One from the pedal to the left carb and one from the pedal to the right carb.
Both of y'all are talking about the single cable of the sync-link that winds it's way to BOTH carburetors. I like the idea. 
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... Most folks are idiots when it deals with electrical !!! |
| 67rustavenger wrote: |
3/4 race cam? What's missing, one of the lobes?  |
Paul
'68 Manx clone... Sears??
2276 built on AS21 case
W-125 w/ GB 1.25:1 rockers
Mahle forged pistons
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Backtotheeightiesagain
Samba Member
Joined: November 21, 2023
Posts: 101
Location: Uk
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| Posted: Fri Dec 01, 2023 5:46 pm Post subject: Re: Official Dual Carburetor How To Thread |
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Spot on there!
Mad ideas are confusing. Not trying to put them companies out of business, but not looking forward to using what they make...
Just cut out the problem, cut out the linkage. Some bodging/mcguyvering maybe, but then you will be after the $100-200 on a linkage. Which you shouldnt. |
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pierrox
Samba Member
Joined: March 06, 2013
Posts: 268
Location: Paris, London, The Alps, North Carolina
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| Posted: Sat Dec 02, 2023 3:58 am Post subject: Re: Official Dual Carburetor How To Thread |
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| slayer61 wrote: |
| Both of y'all are talking about the single cable of the sync-link that winds it's way to BOTH carburetors. |
Not quite but similar. It's one cable from the pedal but it's split and goes to both carbs.
The flat twin BMWs use a single cable from the throttle to the engine, then a cable splitter to go to each carb. The older models have a basic system, whilst the more recent are a bit more fancy.
https://www.euromotoelectrics.com/product-p/cableadj014.htm
https://www.euromotoelectrics.com/product-p/throttledist001.htm
I don't think having two cables from the pedal would work. It's too far to allow precise adjustment. But adapting a BMW system wouldn't be too complicated. The only part you'd need to create is the wheel on the carb to replace the lever. I'm sure someone with 3D printing experience could make one easily.
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APPLEGREENVW
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Joined: November 30, 2003
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Location: Seekonk,Massachusetts USA
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weeman
Samba Member
Joined: November 13, 2012
Posts: 6
Location: Canada
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| Posted: Wed May 21, 2025 2:09 pm Post subject: Re: Official Dual Carburetor How To Thread |
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Ordered a rebuild kit for my Weber 44 offs but they came with different mixture screws. The ones on left are my original ones and the kit came with the ones on right. Did I order wrong thing or are my original ones wrong or does it matter
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modok
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Joined: October 30, 2009
Posts: 27588
Location: Colorado Springs
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| Posted: Wed May 21, 2025 8:50 pm Post subject: Re: Official Dual Carburetor How To Thread |
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The screw on the left is an improved design, which prevents the needle getting stuck in the seat, they started that probably in the 80's
The needle on the right is.....a needle, which might fit very old or reproduction carburetors.
If it ain't broke don't fix it,
and you don't understand what your doing...
Ask on the internet  |
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