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Author Topic: 81 CB 750C  (Read 9296 times)

Offline CB MIKE

  • Posts: 91
Re: 81 CB 750C
« Reply #30 on: Nov 13, 2016, 18:08:58 »
Good progress this weekend, carbs cleaned and front end disassembled. Wish my carb kits were here so I could put them back together. Hopefully next weekend.

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81 CB750C

Offline CB MIKE

  • Posts: 91
Re: 81 CB 750C
« Reply #31 on: Dec 03, 2016, 17:50:39 »
Anyone try this cognito airbox replacement?
 https://cognitomoto.com/products/cb750-air-intake-box-sohc-and-dohc?variant=11585138177
Curious what type of tuning is required when using this. Will you run into similar issues as running pods? Also their description says it fits k models, would that also work for the c? 

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81 CB750C

Offline coyote13

  • Posts: 1140
Re: 81 CB 750C
« Reply #32 on: Dec 03, 2016, 19:35:37 »
Anyone try this cognito airbox replacement?
 https://cognitomoto.com/products/cb750-air-intake-box-sohc-and-dohc?variant=11585138177
Curious what type of tuning is required when using this. Will you run into similar issues as running pods? Also their description says it fits k models, would that also work for the c? 

Sent from my SM-G930V using DO THE TON mobile app

Shoot Devin (SpeedBump on here) a PM, hear he's usually pretty quick to respond.  Likely have to jet up a bit from stock, but don't quote me on that.
Half the fun's in the get there...

Offline esmoojee

  • Posts: 163
Re: 81 CB 750C
« Reply #33 on: Dec 04, 2016, 13:00:39 »
Steel Dragon Performance makes them as well for the DOHC.  They have built in velocity stacks as well.

Offline CB MIKE

  • Posts: 91
Re: 81 CB 750C
« Reply #34 on: Dec 04, 2016, 13:46:28 »
Steel Dragon Performance makes them as well for the DOHC.  They have built in velocity stacks as well.
I've seen those ones too. I like the look of the cognito ones I'm just trying to figure out if the same issues arise as with pods on these carbs, rejetting & tuning for a not so significant performance change. I'm a noob so all the carb work is new to me and I'm not trying to get in over my head or spend that kind of  $ without knowing for sure.

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81 CB750C

Offline CB MIKE

  • Posts: 91
Re: 81 CB 750C
« Reply #35 on: Dec 04, 2016, 13:51:05 »
Also picked up an 81 750f for $100. Mocked up the tank. Anyone know if the swing arm will bolt up easily? I'd like to swap for the disc rear. I know the master cylinder and such will need brackets.

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81 CB750C

Offline esmoojee

  • Posts: 163
Re: 81 CB 750C
« Reply #36 on: Dec 04, 2016, 14:24:31 »
I hear you on the carb stuff.  It can be a little overwhelming. As far as the swingarm it should just drop right in.  I don't thing there should be any issues. 

Offline BigNickel

  • Posts: 43
Re: 81 CB 750C
« Reply #37 on: Dec 05, 2016, 15:06:53 »
Looking good! I'm also interested in the cognito moto filter for my 750C. My buddy gave me pod filters for free that he never used for a project he had but I hear so many horror stories. Be sure to update if you get the Cognito unit.

Cheers

Offline CB MIKE

  • Posts: 91
Re: 81 CB 750C
« Reply #38 on: Dec 05, 2016, 20:23:00 »
I'm going to hold off on the filter for now. This is the response I got from cognito "These are much like pods. They do have more internal volume but will require re-jetting. We've sold a number of these without issue."

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81 CB750C

Offline CB MIKE

  • Posts: 91
Re: 81 CB 750C
« Reply #39 on: Dec 23, 2016, 17:40:36 »
Latest update got the f tank mounting bracket fit up and welded. She fits like a glove. Threw the light and bars on quick just to get a feel for it. The other bike is my goal for the rear end take note of my sweet paint skills. Ignore my hideous welds.

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81 CB750C