Author Topic: Dual weber dcoe40 throttle linkage (Read 2636 times)

T1m32sh1n3 · « **on:** December 26, 2020, 09:26:46 pm »

What linkage are the weber guys using?

scottly · « **Reply #1 on:** December 26, 2020, 09:45:23 pm »

What manifold? RC or MPD?

RAZZ · « **Reply #2 on:** December 27, 2020, 02:02:19 am »

Hi my webers came with This ( se pictures ) it works very Well for both a one piece MDP and separate weltet manifolds if you have acces to the right workshop it Will not be to hard to make yourself

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Tintop · « **Reply #3 on:** December 27, 2020, 05:06:29 am »

My go to for Weber parts has mainly been Pierce Manifolds - https://www.piercemanifolds.com/Default.asp

T1m32sh1n3 · « **Reply #4 on:** December 27, 2020, 05:14:19 am »

754 · « **Reply #5 on:** December 27, 2020, 05:38:28 am »

4 th pic from Razz, shows a lot of it in that top view. Gives a general idea.
The one with adjusters , should be the one the throttle cable is attached to. The other carb has a linkage that follows the first carb. Some of them only have one screw for adjusting.
We can make a diagram later , or get a side shot of these parts from a set that is apart. Some MPD manifolds are split.
Do you have a 1 or 2 pc's manifold ?
The little block that attaches cable is pretty easy to make, can make a little drawing, later today.

T1m32sh1n3 · « **Reply #6 on:** December 27, 2020, 07:08:10 am »

1 piece mpd

754 · « **Reply #7 on:** December 27, 2020, 07:54:34 am »

Is this a set that ran before, or are you adding carbs , not used on the manifold before .?
On the ends of throttle shafts, are there any linkage bits ? If there is can you post a pic.

T1m32sh1n3 · « **Reply #8 on:** December 27, 2020, 08:19:44 am »

I have to buy carbs. Ive inly got the manifold.

754 · « **Reply #9 on:** December 27, 2020, 08:24:56 am »

Ah , ok . So you may have to make these. Not real hard . Dou you have access to a lathe? That would be for the cable attachment fitting. ... probably make it without.

754 · « **Reply #10 on:** December 27, 2020, 08:46:47 am »

Ok you may be able to buy these. The one that goes to cable is called a throttle cable trunnion. If you have a lathe just make one.
The other parts, in the second pic look like they work , just look at the 2 lower parts. They are quite similar to what MPD came with.

T1m32sh1n3 · « **Reply #11 on:** December 27, 2020, 09:02:52 am »

Is that linkage center mount? Do you have a link for the linkage in the secomd pic?

T1m32sh1n3 · « **Reply #12 on:** December 27, 2020, 09:03:35 am »

No access to a lathe

754 · « **Reply #13 on:** December 27, 2020, 09:13:44 am »

I found it under Weber throttle linkage .. i think.
Probably off tgecshelf from one of the suppliers, not real hard to make either.
Those are part of a big pricey kit. , not sure if they sell separate. I would look around a bit see if you find similar ones , as they are a bit different than what we use.

T1m32sh1n3 · « **Reply #14 on:** December 27, 2020, 09:40:46 am »

Is there a left and right carb?

754 · « **Reply #15 on:** December 27, 2020, 10:01:21 am »

I would say no, but once you bolt try linkage on they would become a left and a right.
Where are you planning on getting the carbs from. .. best to get two the same. If you order new , may have your choice of jetting..
Did you recently get the manifold ? Off eBay , maybe ?

T1m32sh1n3 · « **Reply #16 on:** December 27, 2020, 10:07:41 am »

Going to get new carbs, probably thru redline.
The manifold came thru ebay from cyclex other ebay account.

754 · « **Reply #17 on:** December 27, 2020, 10:13:35 am »

The one for 157 bux? Good score..

T1m32sh1n3 · « **Reply #18 on:** December 27, 2020, 10:22:01 am »

Yeah thats the one

Tintop · « **Reply #19 on:** December 27, 2020, 10:38:41 am »

If your buying new from Redline, or Pierce, let them know the application & they can / will supply the throttle parts required.

Jerry Rxman Griffin aka MuthaF'er · « **Reply #20 on:** December 27, 2020, 11:28:04 am »

Anyone else want a set of Webers with RC manifold? Few odds and ends come along. $750 plus shipping

754 · « **Reply #21 on:** December 27, 2020, 12:47:22 pm »

I hope its not the set we worked on..

New contest for 2021 is get your Webers on yer Bike , and running !

scottly · « **Reply #22 on:** December 27, 2020, 06:11:21 pm »

Quote from: T1m32sh1n3 on December 27, 2020, 09:02:52 am

Is that linkage center mount? Do you have a link for the linkage in the secomd pic?

That linkage in the second pic is for carbs with the throttle shafts parallel, not angled like with an MPD manifold. It *might* work, but I suspect there might be some binding transitioning from idle to full throttle and back again? The setup I've settled on uses a couple of spherical rod ends, with the levers on the carb shafts set 90* apart. It took some careful tweaking and spacing of the levers to get it right, and it's a bit of a pain to sync the two carbs for idle, but once set the sync holds until I unbolt the carbs or the two piece manifold.
What size engine are you using the Webs on? We can give you an idea of what settings you should ask for with the new carbs.

T1m32sh1n3 · « **Reply #23 on:** December 27, 2020, 08:36:58 pm »

Ive got options as far as engine size.... havent built the engine yet. Ive got a small variety of pistons to choose from, 811, 849, 895.

Jerry Rxman Griffin aka MuthaF'er · « **Reply #24 on:** December 27, 2020, 11:05:04 pm »

Quote from: 754 on December 27, 2020, 12:47:22 pm

I hope its not the set we worked on..

New contest for 2021 is get your Webers on yer Bike , and running !

Yes. I put a new set of RS34's on it instead.

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Author Topic: Dual weber dcoe40 throttle linkage (Read 2636 times)