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1979 to 1983 DOHC CB750/900/1000/1100 Honda Custom: Forums

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2smoooth
Getting up steam
Getting up steam



Joined: Dec 27, 2016
Posts: 20
Location: Maple Valley, WA

PostPosted: Tue Dec 27, 2016 9:18 pm Reply with quote Back to top

Good evening-

New member here. Just took possession of a '79 CB750K (Limited Edition). My father had one of these bikes back in '79 when I was 11 years old and I have been wanting to get one ever since.

Finally found one for sale this past fall in Aspen, CO and it arrived last week. It seems to be in pretty good condition, and just turned it over for the first time tonight.

Looking forward to bringing this bike back to as close to showroom stock as I can over the next year or so.

Cheers,

John

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´79 CB750k Limited Edition
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pd750
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Joined: Aug 01, 2007
Posts: 23196
Location: Queen Creek , Arizona

PostPosted: Wed Dec 28, 2016 8:52 am Reply with quote Back to top

Welcome to the site John ... Smile

Post a few pics of your bike . Good to see you keeping it stock . thumbs up

_________________
sunshine New members , Please read and understand :

Please put the year and model of your bike in the signature section on your profile page and set "Always attach signature " to YES .
NOTE : In order for your signature to show up in posts you also have to check the box that's labeled "Attach signature (signatures can be changed in profile)" , just below the Quick Reply box at the bottom of threads , when making your next post . This only has to be done once . Thanks

New Members Read This Thread :
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&p=98405#98405

Picture Posting :
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&t=11546

Checklist :
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&p=68384
* *
Every man makes his own chains .
* *
A candle loses nothing by lighting another candle ...

"The only thing that you have which can never be replaced or recovered is your time. Use it well." Author Unknown .
* *
1982 CB750C - Sold > Looking for my next one .
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genesound
administrator



Joined: Jul 24, 2007
Posts: 41234
Location: Studio City, CA

PostPosted: Wed Dec 28, 2016 12:45 pm Reply with quote Back to top

Welcome to here wave

_________________
NMT - New Member's Thread, a Must Read, click here!!! - Information For New and Veteran Members.
Contains SITE RULES, how to enter required bike information in your signature, thread and picture posting...
Also some important DOHC wrenching tips, and some other information.
Kindly read this linked thread with the rules before posting
pictures or asking lots of questions that are already answered in it.

ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ
For Honda Shop Manuals (FSM), Click Here.
Click here to go fiche at Parts Pit Stop.
Click here to go fiche at Partzilla.
Sean's Bike Maintenance Checklist Click!
MacGregor Carb Rebuilding Manual, Click Here.
⊳⊳⊳⊳Learn to use the Search Engine Click Here.⊲⊲⊲⊲
Be sure to use Copper Anti-Seize on your Spark Plug Threads!
To Fix and Better Understand Your DOHC Honda Charging System, Click Here.

ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ
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Duke
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Joined: Sep 27, 2009
Posts: 13090
Location: ABQ, NM, USA

PostPosted: Wed Dec 28, 2016 1:12 pm Reply with quote Back to top

Welcome John

Enjoy the site

_________________
Duke

1981 CB900 Custom

New Members Thread. Learn how to use the search engine, post proper sized pictures and get answers to very common questions that have been asked numerous times: Click Here

Find the FSM (factory service manual) and other tech docs here: Click Here

Have problems with your charging system?: Click Here

SeanG´s new to you bike Checklist (make your 30+ year old bike tip top before you ride it): Click Here

SeanG´s Excellent Carb Manual And Rebuild Guide: Click Here

Find out what Petcock fits your tank!! Just because you have a 1981 bike doesn't always mean it has a 1981 tank: Click Here

Buy Procom Ignitors directly from Procom´s website: Click Here

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RIP Oliver
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holysmokes
Admin



Joined: Jul 25, 2007
Posts: 35635
Location: ridge road springfield nova scotia

PostPosted: Thu Dec 29, 2016 8:03 am Reply with quote Back to top

Hello

_________________
On a steel horse i ride
.mm to inch conversion chart
http://www.carolynrelei.com/inchchart.htm
picture posting
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&t=127
link to manuals + tech threads>
http://www.cb750c.com/modules.php?name=Forums&file=viewforum&f=5
valve adjust thread>
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&t=12173&highlight=shim
check charging video
https://www.youtube.com/watch?v=YvRe9g_2gyM
carb cleaning thread>
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&t=13611&highlight=carb
verifying ground
https://www.youtube.com/watch?v=SyNYlaoInUE
checking stator
https://www.youtube.com/watch?v=5v2LtHlvcqI
checking r/r
https://www.youtube.com/watch?v=kDx3zgOLShY
checking rotor ohms thread>
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&t=1477&highlight=ohms
torque values thread >
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&p=81382#81382

http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&t=52
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&t=6935&highlight=shadow
http://www.weather.com/weather/extended/l/CAXX1175
People are just as happy as they make up their
minds to be.” ― Abraham Lincoln
http://i559.photobucket.com/albums/ss31/johnveinot/DSCF1663.jpg
85 kz1100 ltd
85 v45 magna
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2smoooth
Getting up steam
Getting up steam



Joined: Dec 27, 2016
Posts: 20
Location: Maple Valley, WA

PostPosted: Tue Jan 03, 2017 12:46 am Reply with quote Back to top

Thanks for the welcome guys... Here is a picture of me alongside my Dad's CB750 back in 1979, and also a shot of my "new" one that arrived last week.

I am sure I will lots of questions along the way, but from my brief time here I am seeing a TON of knowledge!

Image

Image

As I look at both pictures I also see that I don't have the stock exhaust on the new one. Thoughts on making that happen are certainly welcome!

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´79 CB750k Limited Edition
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pd750
Moderator



Joined: Aug 01, 2007
Posts: 23196
Location: Queen Creek , Arizona

PostPosted: Tue Jan 03, 2017 9:37 am Reply with quote Back to top

Looks to be a very nice start for a restoration .

Stock exhaust do come up occasionally . You might offer a trade of your slash cut pipes , as some guys don't care for the stock 'look' .

Browse our DOHC For Sale section . Place a Wanted ad ...

_________________
sunshine New members , Please read and understand :

Please put the year and model of your bike in the signature section on your profile page and set "Always attach signature " to YES .
NOTE : In order for your signature to show up in posts you also have to check the box that's labeled "Attach signature (signatures can be changed in profile)" , just below the Quick Reply box at the bottom of threads , when making your next post . This only has to be done once . Thanks

New Members Read This Thread :
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&p=98405#98405

Picture Posting :
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&t=11546

Checklist :
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&p=68384
* *
Every man makes his own chains .
* *
A candle loses nothing by lighting another candle ...

"The only thing that you have which can never be replaced or recovered is your time. Use it well." Author Unknown .
* *
1982 CB750C - Sold > Looking for my next one .
View user's profile Send private message
Whozaa
Moderator



Joined: May 09, 2010
Posts: 5699
Location: St Louis, Missouri USA

PostPosted: Tue Jan 03, 2017 12:08 pm Reply with quote Back to top

Those kind of look like somebody chopped the ends off the stock system. Unless maybe they're just slip-ons with the stock headers.

But the ends aren't cut at the same angle. So it makes me think somebody got a little crazy with a hacksaw. Are there any baffles inside?

_________________
79 CB750F
68 CT90

Hey new guy! Please read the New Members Thread behind this link. http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&t=7149
It contains the rules for forum posting and other valuable info you need to know.
View user's profile Send private message
holysmokes
Admin



Joined: Jul 25, 2007
Posts: 35635
Location: ridge road springfield nova scotia

PostPosted: Wed Jan 04, 2017 10:37 am Reply with quote Back to top

Those mufflers are aftermarket . I think

_________________
On a steel horse i ride
.mm to inch conversion chart
http://www.carolynrelei.com/inchchart.htm
picture posting
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&t=127
link to manuals + tech threads>
http://www.cb750c.com/modules.php?name=Forums&file=viewforum&f=5
valve adjust thread>
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&t=12173&highlight=shim
check charging video
https://www.youtube.com/watch?v=YvRe9g_2gyM
carb cleaning thread>
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&t=13611&highlight=carb
verifying ground
https://www.youtube.com/watch?v=SyNYlaoInUE
checking stator
https://www.youtube.com/watch?v=5v2LtHlvcqI
checking r/r
https://www.youtube.com/watch?v=kDx3zgOLShY
checking rotor ohms thread>
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&t=1477&highlight=ohms
torque values thread >
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&p=81382#81382

http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&t=52
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&t=6935&highlight=shadow
http://www.weather.com/weather/extended/l/CAXX1175
People are just as happy as they make up their
minds to be.” ― Abraham Lincoln
http://i559.photobucket.com/albums/ss31/johnveinot/DSCF1663.jpg
85 kz1100 ltd
85 v45 magna
View user's profile Send private message Send e-mail
2smoooth
Getting up steam
Getting up steam



Joined: Dec 27, 2016
Posts: 20
Location: Maple Valley, WA

PostPosted: Wed Jan 04, 2017 12:45 pm Reply with quote Back to top

To the above replies.. yeah, I agree they appear to be aftermarket pipes. Judging from the condition I don't believe they were merely hacksawed, but who knows right?

_________________
´79 CB750k Limited Edition
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genesound
administrator



Joined: Jul 24, 2007
Posts: 41234
Location: Studio City, CA

PostPosted: Wed Jan 04, 2017 12:57 pm Reply with quote Back to top

They look like maybe they were made from slip-ons for a different application.

_________________
NMT - New Member's Thread, a Must Read, click here!!! - Information For New and Veteran Members.
Contains SITE RULES, how to enter required bike information in your signature, thread and picture posting...
Also some important DOHC wrenching tips, and some other information.
Kindly read this linked thread with the rules before posting
pictures or asking lots of questions that are already answered in it.

ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ
For Honda Shop Manuals (FSM), Click Here.
Click here to go fiche at Parts Pit Stop.
Click here to go fiche at Partzilla.
Sean's Bike Maintenance Checklist Click!
MacGregor Carb Rebuilding Manual, Click Here.
⊳⊳⊳⊳Learn to use the Search Engine Click Here.⊲⊲⊲⊲
Be sure to use Copper Anti-Seize on your Spark Plug Threads!
To Fix and Better Understand Your DOHC Honda Charging System, Click Here.

ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ
ImageImageImage
___ImageCB1000C __ Image ___ CB1100FImage__
View user's profile Send private message Visit poster's website
2smoooth
Getting up steam
Getting up steam



Joined: Dec 27, 2016
Posts: 20
Location: Maple Valley, WA

PostPosted: Wed Jan 04, 2017 4:44 pm Reply with quote Back to top

I agree.... I am hoping the headers are stock (then start watching for stock mufflers)

_________________
´79 CB750k Limited Edition
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pd750
Moderator



Joined: Aug 01, 2007
Posts: 23196
Location: Queen Creek , Arizona

PostPosted: Wed Jan 04, 2017 5:17 pm Reply with quote Back to top

You really should learn to use the fiche :

http://www.hondapartspitstop.com/oemparts/c/honda/parts

Stock exhaust are pipe and muffler as a single unit .

_________________
sunshine New members , Please read and understand :

Please put the year and model of your bike in the signature section on your profile page and set "Always attach signature " to YES .
NOTE : In order for your signature to show up in posts you also have to check the box that's labeled "Attach signature (signatures can be changed in profile)" , just below the Quick Reply box at the bottom of threads , when making your next post . This only has to be done once . Thanks

New Members Read This Thread :
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&p=98405#98405

Picture Posting :
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&t=11546

Checklist :
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&p=68384
* *
Every man makes his own chains .
* *
A candle loses nothing by lighting another candle ...

"The only thing that you have which can never be replaced or recovered is your time. Use it well." Author Unknown .
* *
1982 CB750C - Sold > Looking for my next one .
View user's profile Send private message
Duke
Moderator



Joined: Sep 27, 2009
Posts: 13090
Location: ABQ, NM, USA

PostPosted: Wed Jan 04, 2017 5:34 pm Reply with quote Back to top

Chances are you won't just find stock mufflers. The exhaust systems are whole and not separate. You do see stock headers from time to time but that is because the stock mufflers were useless and rotted anyway and cut off.

There have been posts of guys that have fabbed up new mufflers to existing headers. It can be done but who knows what you got to work with. Somebody who just hacks might not take into account the necessary precision required to do that fab.

You might find something on eBay that is worthy but the pickings are slim and when something does show up and say "nice" be prepared to pay.

I do like the look of the OEM mufflers a lot. I think that is my favorite look with the chamfer and all.

My bike has OEM headers and slip-ons that were NOS. Stuff does come up on eBay from time to time. You just need to be ready to pull the trigger when it happens. I haven't seen it in awhile but every now and then some OEM NOS exhausts show up but they are $$$ and I haven't seen one in awhile.

I hope you start a build thread and document the progress you make with your new bike.

_________________
Duke

1981 CB900 Custom

New Members Thread. Learn how to use the search engine, post proper sized pictures and get answers to very common questions that have been asked numerous times: Click Here

Find the FSM (factory service manual) and other tech docs here: Click Here

Have problems with your charging system?: Click Here

SeanG´s new to you bike Checklist (make your 30+ year old bike tip top before you ride it): Click Here

SeanG´s Excellent Carb Manual And Rebuild Guide: Click Here

Find out what Petcock fits your tank!! Just because you have a 1981 bike doesn't always mean it has a 1981 tank: Click Here

Buy Procom Ignitors directly from Procom´s website: Click Here

Image

Image
RIP Oliver
View user's profile Send private message Visit poster's website
Duke
Moderator



Joined: Sep 27, 2009
Posts: 13090
Location: ABQ, NM, USA

PostPosted: Wed Jan 04, 2017 9:21 pm Reply with quote Back to top

pd750 wrote:
You really should learn to use the fiche :

http://www.hondapartspitstop.com/oemparts/c/honda/parts

Stock exhaust are pipe and muffler as a single unit .


Lots of questions are answered right there in the fiche.

_________________
Duke

1981 CB900 Custom

New Members Thread. Learn how to use the search engine, post proper sized pictures and get answers to very common questions that have been asked numerous times: Click Here

Find the FSM (factory service manual) and other tech docs here: Click Here

Have problems with your charging system?: Click Here

SeanG´s new to you bike Checklist (make your 30+ year old bike tip top before you ride it): Click Here

SeanG´s Excellent Carb Manual And Rebuild Guide: Click Here

Find out what Petcock fits your tank!! Just because you have a 1981 bike doesn't always mean it has a 1981 tank: Click Here

Buy Procom Ignitors directly from Procom´s website: Click Here

Image

Image
RIP Oliver
View user's profile Send private message Visit poster's website
genesound
administrator



Joined: Jul 24, 2007
Posts: 41234
Location: Studio City, CA

PostPosted: Fri Jan 06, 2017 4:39 am Reply with quote Back to top

There were numerous slip-ons made that fit these bikes back in the 80s. In order to install them, the stock pipe needed to be cut because at least one of the stock pipes on each side was one continuous piece from front to back.

_________________
NMT - New Member's Thread, a Must Read, click here!!! - Information For New and Veteran Members.
Contains SITE RULES, how to enter required bike information in your signature, thread and picture posting...
Also some important DOHC wrenching tips, and some other information.
Kindly read this linked thread with the rules before posting
pictures or asking lots of questions that are already answered in it.

ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ
For Honda Shop Manuals (FSM), Click Here.
Click here to go fiche at Parts Pit Stop.
Click here to go fiche at Partzilla.
Sean's Bike Maintenance Checklist Click!
MacGregor Carb Rebuilding Manual, Click Here.
⊳⊳⊳⊳Learn to use the Search Engine Click Here.⊲⊲⊲⊲
Be sure to use Copper Anti-Seize on your Spark Plug Threads!
To Fix and Better Understand Your DOHC Honda Charging System, Click Here.

ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ
ImageImageImage
___ImageCB1000C __ Image ___ CB1100FImage__
View user's profile Send private message Visit poster's website
holysmokes
Admin



Joined: Jul 25, 2007
Posts: 35635
Location: ridge road springfield nova scotia

PostPosted: Fri Jan 06, 2017 9:50 am Reply with quote Back to top

those are mac slipons

_________________
On a steel horse i ride
.mm to inch conversion chart
http://www.carolynrelei.com/inchchart.htm
picture posting
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&t=127
link to manuals + tech threads>
http://www.cb750c.com/modules.php?name=Forums&file=viewforum&f=5
valve adjust thread>
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&t=12173&highlight=shim
check charging video
https://www.youtube.com/watch?v=YvRe9g_2gyM
carb cleaning thread>
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&t=13611&highlight=carb
verifying ground
https://www.youtube.com/watch?v=SyNYlaoInUE
checking stator
https://www.youtube.com/watch?v=5v2LtHlvcqI
checking r/r
https://www.youtube.com/watch?v=kDx3zgOLShY
checking rotor ohms thread>
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&t=1477&highlight=ohms
torque values thread >
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&p=81382#81382

http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&t=52
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&t=6935&highlight=shadow
http://www.weather.com/weather/extended/l/CAXX1175
People are just as happy as they make up their
minds to be.” ― Abraham Lincoln
http://i559.photobucket.com/albums/ss31/johnveinot/DSCF1663.jpg
85 kz1100 ltd
85 v45 magna
View user's profile Send private message Send e-mail
2smoooth
Getting up steam
Getting up steam



Joined: Dec 27, 2016
Posts: 20
Location: Maple Valley, WA

PostPosted: Fri Jan 06, 2017 10:35 pm Reply with quote Back to top

Thank you for all the replies... My apologies for being unfamiliar with the fiche, pretty new at the whole process here.

It is looking more and more like I either (A) clean up the ones I have currently, which likely requires getting the chrome redone or (B) buying a new set of 4 into 2's that seem plentiful while I watch for an OEM set to somehow magically appear.

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´79 CB750k Limited Edition
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Whozaa
Moderator



Joined: May 09, 2010
Posts: 5699
Location: St Louis, Missouri USA

PostPosted: Fri Jan 06, 2017 11:21 pm Reply with quote Back to top

I'd say you've pretty much got it.

Be aware that if you go the aftermarket 4-2 route, they don't last nearly as well as the originals. The chrome is a lot thinner and doesn't stay bright as long. There's really only a couple aftermarket choices and none of them are fantastic. (unless you spend crazy money for an actual custom stainless exhaust)

_________________
79 CB750F
68 CT90

Hey new guy! Please read the New Members Thread behind this link. http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&t=7149
It contains the rules for forum posting and other valuable info you need to know.
View user's profile Send private message
pd750
Moderator



Joined: Aug 01, 2007
Posts: 23196
Location: Queen Creek , Arizona

PostPosted: Sat Jan 07, 2017 9:36 am Reply with quote Back to top

http://www.ebay.com/sch/sis.html?_nkw=Extra+long+Reverse+cone+Megaphone+Muffler+&_itemId=170412792857

_________________
sunshine New members , Please read and understand :

Please put the year and model of your bike in the signature section on your profile page and set "Always attach signature " to YES .
NOTE : In order for your signature to show up in posts you also have to check the box that's labeled "Attach signature (signatures can be changed in profile)" , just below the Quick Reply box at the bottom of threads , when making your next post . This only has to be done once . Thanks

New Members Read This Thread :
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&p=98405#98405

Picture Posting :
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&t=11546

Checklist :
http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&p=68384
* *
Every man makes his own chains .
* *
A candle loses nothing by lighting another candle ...

"The only thing that you have which can never be replaced or recovered is your time. Use it well." Author Unknown .
* *
1982 CB750C - Sold > Looking for my next one .
View user's profile Send private message
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