Author Topic: Dual weber dcoe40 throttle linkage  (Read 627 times)

0 Members and 1 Guest are viewing this topic.

Offline T1m32sh1n3

  • Full Member
  • *
  • Posts: 71
Dual weber dcoe40 throttle linkage
« on: December 26, 2020, 09:26:46 pm »
What linkage are the weber guys using?

Offline scottly

  • Really Old Timer ...
  • *******
  • Posts: 14,285
  • Humboldt, AZ
Re: Dual weber dcoe40 throttle linkage
« Reply #1 on: December 26, 2020, 09:45:23 pm »
What manifold? RC or MPD?
Don't fix it if it ain't broke!
Helmets save brains. Always wear one and ride like everyone is trying to kill you....

Offline RAZZ

  • Enthusiast
  • **
  • Posts: 119
Dual weber dcoe40 throttle linkage
« 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 






Sent from my iPhone using Tapatalk
« Last Edit: December 27, 2020, 02:41:25 am by RAZZ »

Offline Tintop

  • Old Timer
  • ******
  • Posts: 3,891
Re: Dual weber dcoe40 throttle linkage
« 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
1977 CB550/4 Cafe - Speed Warrior / BOTM 03/11
1980 CB750F (project)
Whittaker GBF Vintage Racing Sidecar (XS750 power) - ITG / 151's / CMR Racing Products (SOLD)
1976 CB400 SS - stock / BOTM 04/11 (SOLD)
1973 CB750 K - basket case (SOLD)
77 CB550 Cafe build
550/750 Filter Thread
Sidecar Rebuild Thread

Offline T1m32sh1n3

  • Full Member
  • *
  • Posts: 71
Re: Dual weber dcoe40 throttle linkage
« Reply #4 on: December 27, 2020, 05:14:19 am »
Mpd

Online 754

  • Really Old Timer ...
  • *******
  • Posts: 28,469
Re: Dual weber dcoe40 throttle linkage
« 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.
Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline T1m32sh1n3

  • Full Member
  • *
  • Posts: 71
Re: Dual weber dcoe40 throttle linkage
« Reply #6 on: December 27, 2020, 07:08:10 am »
1 piece mpd

Online 754

  • Really Old Timer ...
  • *******
  • Posts: 28,469
Re: Dual weber dcoe40 throttle linkage
« 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.
Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline T1m32sh1n3

  • Full Member
  • *
  • Posts: 71
Re: Dual weber dcoe40 throttle linkage
« Reply #8 on: December 27, 2020, 08:19:44 am »
I have to buy carbs. Ive inly got the manifold.

Online 754

  • Really Old Timer ...
  • *******
  • Posts: 28,469
Re: Dual weber dcoe40 throttle linkage
« 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.
Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Online 754

  • Really Old Timer ...
  • *******
  • Posts: 28,469
Re: Dual weber dcoe40 throttle linkage
« 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.
« Last Edit: December 27, 2020, 08:49:08 am by 754 »
Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline T1m32sh1n3

  • Full Member
  • *
  • Posts: 71
Re: Dual weber dcoe40 throttle linkage
« 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?

Offline T1m32sh1n3

  • Full Member
  • *
  • Posts: 71
Re: Dual weber dcoe40 throttle linkage
« Reply #12 on: December 27, 2020, 09:03:35 am »
No access to a lathe

Online 754

  • Really Old Timer ...
  • *******
  • Posts: 28,469
Re: Dual weber dcoe40 throttle linkage
« 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.
Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline T1m32sh1n3

  • Full Member
  • *
  • Posts: 71
Re: Dual weber dcoe40 throttle linkage
« Reply #14 on: December 27, 2020, 09:40:46 am »
Is there a left and right carb?

Online 754

  • Really Old Timer ...
  • *******
  • Posts: 28,469
Re: Dual weber dcoe40 throttle linkage
« 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 ?
Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline T1m32sh1n3

  • Full Member
  • *
  • Posts: 71
Re: Dual weber dcoe40 throttle linkage
« 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.

Online 754

  • Really Old Timer ...
  • *******
  • Posts: 28,469
Re: Dual weber dcoe40 throttle linkage
« Reply #17 on: December 27, 2020, 10:13:35 am »
The one for  157 bux? Good score..
« Last Edit: December 27, 2020, 10:40:34 am by 754 »
Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline T1m32sh1n3

  • Full Member
  • *
  • Posts: 71
Re: Dual weber dcoe40 throttle linkage
« Reply #18 on: December 27, 2020, 10:22:01 am »
Yeah thats the one

Offline Tintop

  • Old Timer
  • ******
  • Posts: 3,891
Re: Dual weber dcoe40 throttle linkage
« 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. 
1977 CB550/4 Cafe - Speed Warrior / BOTM 03/11
1980 CB750F (project)
Whittaker GBF Vintage Racing Sidecar (XS750 power) - ITG / 151's / CMR Racing Products (SOLD)
1976 CB400 SS - stock / BOTM 04/11 (SOLD)
1973 CB750 K - basket case (SOLD)
77 CB550 Cafe build
550/750 Filter Thread
Sidecar Rebuild Thread

Offline Jerry Rxman Griffin aka MuthaF'er

  • This MuthaF'er is getting to be a
  • Really Old Timer ...
  • *******
  • Posts: 14,292
  • Bought her new 4/75
Re: Dual weber dcoe40 throttle linkage
« 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
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Online 754

  • Really Old Timer ...
  • *******
  • Posts: 28,469
Re: Dual weber dcoe40 throttle linkage
« 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 !
Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline scottly

  • Really Old Timer ...
  • *******
  • Posts: 14,285
  • Humboldt, AZ
Re: Dual weber dcoe40 throttle linkage
« Reply #22 on: December 27, 2020, 06:11:21 pm »
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. :)
 
Don't fix it if it ain't broke!
Helmets save brains. Always wear one and ride like everyone is trying to kill you....

Offline T1m32sh1n3

  • Full Member
  • *
  • Posts: 71
Re: Dual weber dcoe40 throttle linkage
« 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.

Offline Jerry Rxman Griffin aka MuthaF'er

  • This MuthaF'er is getting to be a
  • Really Old Timer ...
  • *******
  • Posts: 14,292
  • Bought her new 4/75
Re: Dual weber dcoe40 throttle linkage
« Reply #24 on: December 27, 2020, 11:05:04 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.
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline Don R

  • My Sandcast is a
  • Really Old Timer ...
  • *******
  • Posts: 13,315
  • Saver of unloved motorcycles.
Re: Dual weber dcoe40 throttle linkage
« Reply #25 on: January 04, 2021, 09:34:15 am »
  I have a set in the shop, I'll get a pic when I go out later. They are similar to scottly's but a bit simpler.  My intake had been broken at the center and incorrectly welded back together increasing the spread. I made them a bolt together deal (after seeing manifolds that came that way) so installation is a bit easier with the angled intakes.
No matter how many times you paint over a shadow, it's still there.

Offline T1m32sh1n3

  • Full Member
  • *
  • Posts: 71
Re: Dual weber dcoe40 throttle linkage
« Reply #26 on: January 05, 2021, 05:32:21 am »
Thanks for the info and pics everyone.