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Author Topic: CB750k 4-2 exhaust system  (Read 204 times)

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Offline jakeNAIL

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CB750k 4-2 exhaust system
« on: January 28, 2025, 05:24:58 PM »
Does anyone know where I can buy a good 4-2 exhaust? I like the exhaust on either side of the bike but looking for something cheaper than the new stock type. Thanks
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Online scottly

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Re: CB750k 4-2 exhaust system
« Reply #1 on: January 28, 2025, 07:37:44 PM »
Welcome Jake! You can post a "wanted" ad here:
http://forums.sohc4.net/index.php/board,182.0.html
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Offline newday777

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Re: CB750k 4-2 exhaust system
« Reply #2 on: January 29, 2025, 03:32:10 AM »
Welcome to the forum Jake
Unfortunately there aren't any companies making new 4into2 systems at this point so used will be the only way to get hold of a set.
I just sold a set a few months ago to another member, they were made by Jardine back in the 70s and 80s.
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Stu
Honda Parts manager in the mid 1970s Nashua Honda
My current rides
1975 K5 Planet Blue my summer ride, it was a friend's bike I worked with at the Honda shop in 76, lots of fun to be on it again
1976 K6 Anteres Red rebuilding project, was originally my brother's that I set up from the crate, it'll breath again soon!
Project 750s, 2 K4, 2 K6, 1 K8
2008 GL1800 my daily ride and cross country runner

Prior bikes....
1972 Suzuki GT380 I had charge of it for a year in 1973 while my friend was deployed and learned to love street riding....
New CB450 K7 after my friend returned...
New CB750 K5 Planet Blue, demise by ex cousin in law at 9,000 miles...
New CB750 K6 Anteres Red, to replace the totaled K5, I sold this K6 at 45k in 1983, I had heavily modified it, many great memories on it and have missed it greatly.....
1983 GL1100A, 1999 GL1500 SE, 1999 GL1500A

Offline newday777

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Re: CB750k 4-2 exhaust system
« Reply #3 on: January 29, 2025, 03:36:33 AM »
Quote from: jakeNAIL on January 28, 2025, 05:24:58 PM
Does anyone know where I can buy a good 4-2 exhaust? I like the exhaust on either side of the bike but looking for something cheaper than the new stock type. Thanks
What year is your bike?
77 & 78 K models are a bit different from the 69-76 in the mounting at the head and at the rear pegs, but can be made to fit.
Where are you located?
I might have a set with turn out ends that are on a K6 back in the corner of the shop.
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Stu
Honda Parts manager in the mid 1970s Nashua Honda
My current rides
1975 K5 Planet Blue my summer ride, it was a friend's bike I worked with at the Honda shop in 76, lots of fun to be on it again
1976 K6 Anteres Red rebuilding project, was originally my brother's that I set up from the crate, it'll breath again soon!
Project 750s, 2 K4, 2 K6, 1 K8
2008 GL1800 my daily ride and cross country runner

Prior bikes....
1972 Suzuki GT380 I had charge of it for a year in 1973 while my friend was deployed and learned to love street riding....
New CB450 K7 after my friend returned...
New CB750 K5 Planet Blue, demise by ex cousin in law at 9,000 miles...
New CB750 K6 Anteres Red, to replace the totaled K5, I sold this K6 at 45k in 1983, I had heavily modified it, many great memories on it and have missed it greatly.....
1983 GL1100A, 1999 GL1500 SE, 1999 GL1500A

Offline jakeNAIL

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Re: CB750k 4-2 exhaust system
« Reply #4 on: January 29, 2025, 06:34:16 AM »
I live in upstate NY. Its a K6. Everything is currently torn down so I wont be needing the exhaust for a while. Currently rebuilding the top end and going clean up and repaint the frame next.
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Offline newday777

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Re: CB750k 4-2 exhaust system
« Reply #5 on: January 29, 2025, 06:40:03 AM »
Cool. I'm in southern NH.
Start a project thread on it. Post pictures of it how it started and as you go along. And include the history of the bike if you know what it is and your plans for it.

Project Shop
http://forums.sohc4.net/index.php/board,103.0.html
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Stu
Honda Parts manager in the mid 1970s Nashua Honda
My current rides
1975 K5 Planet Blue my summer ride, it was a friend's bike I worked with at the Honda shop in 76, lots of fun to be on it again
1976 K6 Anteres Red rebuilding project, was originally my brother's that I set up from the crate, it'll breath again soon!
Project 750s, 2 K4, 2 K6, 1 K8
2008 GL1800 my daily ride and cross country runner

Prior bikes....
1972 Suzuki GT380 I had charge of it for a year in 1973 while my friend was deployed and learned to love street riding....
New CB450 K7 after my friend returned...
New CB750 K5 Planet Blue, demise by ex cousin in law at 9,000 miles...
New CB750 K6 Anteres Red, to replace the totaled K5, I sold this K6 at 45k in 1983, I had heavily modified it, many great memories on it and have missed it greatly.....
1983 GL1100A, 1999 GL1500 SE, 1999 GL1500A

Offline jakeNAIL

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Re: CB750k 4-2 exhaust system
« Reply #6 on: January 29, 2025, 06:50:24 AM »
Okay that sounds cool! Ill take some pictures and post them later today. Thanks for the help.
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Offline newday777

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Re: CB750k 4-2 exhaust system
« Reply #7 on: January 29, 2025, 06:52:59 AM »
You are welcome 😊
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Stu
Honda Parts manager in the mid 1970s Nashua Honda
My current rides
1975 K5 Planet Blue my summer ride, it was a friend's bike I worked with at the Honda shop in 76, lots of fun to be on it again
1976 K6 Anteres Red rebuilding project, was originally my brother's that I set up from the crate, it'll breath again soon!
Project 750s, 2 K4, 2 K6, 1 K8
2008 GL1800 my daily ride and cross country runner

Prior bikes....
1972 Suzuki GT380 I had charge of it for a year in 1973 while my friend was deployed and learned to love street riding....
New CB450 K7 after my friend returned...
New CB750 K5 Planet Blue, demise by ex cousin in law at 9,000 miles...
New CB750 K6 Anteres Red, to replace the totaled K5, I sold this K6 at 45k in 1983, I had heavily modified it, many great memories on it and have missed it greatly.....
1983 GL1100A, 1999 GL1500 SE, 1999 GL1500A

Offline newday777

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  • Posts: 5,720
  • Avatar is my 76 K6 in Colorado w/Cody on back 1980
Re: CB750k 4-2 exhaust system
« Reply #8 on: January 29, 2025, 07:18:28 AM »
I actually have 2 sets with turn out mufflers.
This one on the K6 in my shop. They are in decent condition and have removable mufflers.
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Stu
Honda Parts manager in the mid 1970s Nashua Honda
My current rides
1975 K5 Planet Blue my summer ride, it was a friend's bike I worked with at the Honda shop in 76, lots of fun to be on it again
1976 K6 Anteres Red rebuilding project, was originally my brother's that I set up from the crate, it'll breath again soon!
Project 750s, 2 K4, 2 K6, 1 K8
2008 GL1800 my daily ride and cross country runner

Prior bikes....
1972 Suzuki GT380 I had charge of it for a year in 1973 while my friend was deployed and learned to love street riding....
New CB450 K7 after my friend returned...
New CB750 K5 Planet Blue, demise by ex cousin in law at 9,000 miles...
New CB750 K6 Anteres Red, to replace the totaled K5, I sold this K6 at 45k in 1983, I had heavily modified it, many great memories on it and have missed it greatly.....
1983 GL1100A, 1999 GL1500 SE, 1999 GL1500A

Offline newday777

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  • Posts: 5,720
  • Avatar is my 76 K6 in Colorado w/Cody on back 1980
Re: CB750k 4-2 exhaust system
« Reply #9 on: January 29, 2025, 07:22:09 AM »
The other set came off a K4 and will fit your K6.
The have non removable mufflers, the mufflers should clean up so you have chrome. The head pipes have a bit of corrosion that might not clean to good chrome (they could be sand blasted and painted ceramic black or ??)
1 ding on the lower inside marked with the arrow.
« Last Edit: January 29, 2025, 07:25:27 AM by newday777 »
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Stu
Honda Parts manager in the mid 1970s Nashua Honda
My current rides
1975 K5 Planet Blue my summer ride, it was a friend's bike I worked with at the Honda shop in 76, lots of fun to be on it again
1976 K6 Anteres Red rebuilding project, was originally my brother's that I set up from the crate, it'll breath again soon!
Project 750s, 2 K4, 2 K6, 1 K8
2008 GL1800 my daily ride and cross country runner

Prior bikes....
1972 Suzuki GT380 I had charge of it for a year in 1973 while my friend was deployed and learned to love street riding....
New CB450 K7 after my friend returned...
New CB750 K5 Planet Blue, demise by ex cousin in law at 9,000 miles...
New CB750 K6 Anteres Red, to replace the totaled K5, I sold this K6 at 45k in 1983, I had heavily modified it, many great memories on it and have missed it greatly.....
1983 GL1100A, 1999 GL1500 SE, 1999 GL1500A
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