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Author Topic: Why do people seem to prefer SOHC over the DOHC bikes?  (Read 8255 times)

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Offline Spinned

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Why do people seem to prefer SOHC over the DOHC bikes?
« on: March 07, 2011, 11:11:46 pm »
Is it just because they are older?
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Offline madmtnmotors

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Re: Why do people seem to prefer SOHC over the DOHC bikes?
« Reply #1 on: March 08, 2011, 03:43:07 am »
From personal experience I would say there are several reasons:

1) Simplicity. These bikes are very easy to work on.
2) Reliability. Fix them right and they will get you where you are going.
3) The CB750 is THE first superbike.
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Wilbur



Projects:
"Evolution": http://forums.sohc4.net/index.php?topic=100352.0
"P.O. Debacle": http://forums.sohc4.net/index.php/topic,126692.msg1441661.html#msg1441661
F2/F3 O-rings: http://forums.sohc4.net/index.php?topic=113672.msg1300721#msg1300721
Cam Tower Studs: https://www.mcmaster.com/#93210a017/=t19sgp
Clean up that nasty harness: http://forums.sohc4.net/index.php?topic=137351.msg1549191#msg1549191
http://forums.sohc4.net/index.php/topic,148188.msg1688494.html#msg1688494
http://forums.sohc4.net/index.php/topic,139544.msg1579364.html#msg1579364
                                          
Charging system diagnosis: http://forums.sohc4.net/index.php?topic=1012.msg8345#msg8345
Get the manuals: http://manuals.sohc4.net/cb750k/
The Dragon: http://forums.sohc4.net/index.php?topic=45183.msg1571675#msg1571675
Headlight Switch: http://forums.sohc4.net/index.php?topic=113986.msg1283236#msg1283236
Branden's leak free top end thread: http://forums.sohc4.net/index.php?topic=107040.0
Engine Lifting Made Easy: http://forums.sohc4.net/index.php/topic,58210.msg1684742.html#msg1684742
                                      http://forums.sohc4.net/index.php/topic,100352.msg1675840.html#msg1675840
Static and Dynamic Timing: http://www.hondachopper.com/garage/carb_info/timing/timing1.html
Airbox Gasket Replacement: http://forums.sohc4.net/index.php/topic,114485.msg1290000.html#msg1290000
"Café" : http://forums.sohc4.net/index.php/topic,84697.msg953814.html#msg953814
PD Carb Choke Linkage: http://forums.sohc4.net/index.php/topic,100352.msg1669248.html#msg1669248
                                    http://forums.sohc4.net/index.php/topic,110931.msg1248354.html#msg1248354
                                    http://forums.sohc4.net/index.php/topic,48858.msg515204.html#msg515204
Follow up on your damn posts: http://forums.sohc4.net/index.php/topic,144305.msg1791605.html#msg1791605
Taiwanese Cam Chain Tensioners:  http://forums.sohc4.net/index.php/topic,155043.msg1774841.html#msg1774841
Gumtwo Seat Cover: http://forums.sohc4.net/index.php/topic,164440.msg1897366.html#msg1897366
Primary Drive: http://forums.sohc4.net/index.php/topic,166063.msg1919278.html#msg1919278
Tank Latch: http://forums.sohc4.net/index.php/topic,165975.msg1919495.html#msg1919495
Shorten your forks: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-shorten-forks-td4042465.html DO NOT CUT THE SPRINGS!
Clutch How To: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-change-and-adjust-a-clutch-SOHC-td4040391.html
Late model K7/K8/F2/F3 front sprocket cover removal: http://forums.sohc4.net/index.php/topic,178428.msg2072279.html#msg2072279
630 to 530 conversion: http://forums.sohc4.net/index.php/topic,180710.msg2094423.html#msg2094423

Sent from my Tandy TRS-80!

Offline q2418130103p

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Re: Why do people seem to prefer SOHC over the DOHC bikes?
« Reply #2 on: March 08, 2011, 04:19:44 am »
Quote from: Spinned on March 07, 2011, 11:11:46 pm
Is it just because they are older?

The SOHC can be made into a very clean project bike.  The engines look nice and simple, not bulky.
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Check out my CB550 project thread:
http://forums.sohc4.net/index.php?topic=83097

Markcb750

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Re: Why do people seem to prefer SOHC over the DOHC bikes?
« Reply #3 on: March 08, 2011, 04:21:28 am »
Does anyone know if you can use the same oil in the DOHC as the SOHC?



 :o


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Offline madmtnmotors

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Re: Why do people seem to prefer SOHC over the DOHC bikes?
« Reply #4 on: March 08, 2011, 04:25:29 am »
I would probably use NEW oil instead of the SAME oil...

 ;D ;D ;D
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TAMTF...


Wilbur



Projects:
"Evolution": http://forums.sohc4.net/index.php?topic=100352.0
"P.O. Debacle": http://forums.sohc4.net/index.php/topic,126692.msg1441661.html#msg1441661
F2/F3 O-rings: http://forums.sohc4.net/index.php?topic=113672.msg1300721#msg1300721
Cam Tower Studs: https://www.mcmaster.com/#93210a017/=t19sgp
Clean up that nasty harness: http://forums.sohc4.net/index.php?topic=137351.msg1549191#msg1549191
http://forums.sohc4.net/index.php/topic,148188.msg1688494.html#msg1688494
http://forums.sohc4.net/index.php/topic,139544.msg1579364.html#msg1579364
                                          
Charging system diagnosis: http://forums.sohc4.net/index.php?topic=1012.msg8345#msg8345
Get the manuals: http://manuals.sohc4.net/cb750k/
The Dragon: http://forums.sohc4.net/index.php?topic=45183.msg1571675#msg1571675
Headlight Switch: http://forums.sohc4.net/index.php?topic=113986.msg1283236#msg1283236
Branden's leak free top end thread: http://forums.sohc4.net/index.php?topic=107040.0
Engine Lifting Made Easy: http://forums.sohc4.net/index.php/topic,58210.msg1684742.html#msg1684742
                                      http://forums.sohc4.net/index.php/topic,100352.msg1675840.html#msg1675840
Static and Dynamic Timing: http://www.hondachopper.com/garage/carb_info/timing/timing1.html
Airbox Gasket Replacement: http://forums.sohc4.net/index.php/topic,114485.msg1290000.html#msg1290000
"Café" : http://forums.sohc4.net/index.php/topic,84697.msg953814.html#msg953814
PD Carb Choke Linkage: http://forums.sohc4.net/index.php/topic,100352.msg1669248.html#msg1669248
                                    http://forums.sohc4.net/index.php/topic,110931.msg1248354.html#msg1248354
                                    http://forums.sohc4.net/index.php/topic,48858.msg515204.html#msg515204
Follow up on your damn posts: http://forums.sohc4.net/index.php/topic,144305.msg1791605.html#msg1791605
Taiwanese Cam Chain Tensioners:  http://forums.sohc4.net/index.php/topic,155043.msg1774841.html#msg1774841
Gumtwo Seat Cover: http://forums.sohc4.net/index.php/topic,164440.msg1897366.html#msg1897366
Primary Drive: http://forums.sohc4.net/index.php/topic,166063.msg1919278.html#msg1919278
Tank Latch: http://forums.sohc4.net/index.php/topic,165975.msg1919495.html#msg1919495
Shorten your forks: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-shorten-forks-td4042465.html DO NOT CUT THE SPRINGS!
Clutch How To: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-change-and-adjust-a-clutch-SOHC-td4040391.html
Late model K7/K8/F2/F3 front sprocket cover removal: http://forums.sohc4.net/index.php/topic,178428.msg2072279.html#msg2072279
630 to 530 conversion: http://forums.sohc4.net/index.php/topic,180710.msg2094423.html#msg2094423

Sent from my Tandy TRS-80!

Offline lrutt

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Re: Why do people seem to prefer SOHC over the DOHC bikes?
« Reply #5 on: March 08, 2011, 04:41:42 am »
Yes you can, depending on your area, 20w50 or 10w40 dino, or even syn if you want.
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Offline Bob Wessner

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Re: Why do people seem to prefer SOHC over the DOHC bikes?
« Reply #6 on: March 08, 2011, 04:45:38 am »
Quote from: madmtnmotors on March 08, 2011, 04:25:29 am
I would probably use NEW oil instead of the SAME oil...

 ;D ;D ;D
:)
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Offline MoMo

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Re: Why do people seem to prefer SOHC over the DOHC bikes?
« Reply #7 on: March 08, 2011, 05:08:21 am »
I would use double blended oil in a dohc and single blend in a sohc...Larry
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Offline ekpent

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Re: Why do people seem to prefer SOHC over the DOHC bikes?
« Reply #8 on: March 08, 2011, 05:31:36 am »
Finally an oil thread-Have not seen one in awhile  ;D Spinned-Word is that the engines on the SOHC can last longer also with proper maintenance , plenty of parts available on the secondary market and the cost of entry can be inexpensive if you are patient for a deal,and might be worth more in the end for the collectible value.  OH and the most important thing-you get GREAT help from these blokes.
« Last Edit: March 08, 2011, 05:38:53 am by ekpent »
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Offline 754

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Re: Why do people seem to prefer SOHC over the DOHC bikes?
« Reply #9 on: March 08, 2011, 07:50:49 am »
Because some of us are not insecure, and better is not always necessary...

 Plus some of us know how long these can last with very little working on... = more fun for the bux..
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Maker of the WELDLESS 750 Frame Kit
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Lost quite a few CB 750's along the way

Offline Gordon

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Re: Why do people seem to prefer SOHC over the DOHC bikes?
« Reply #10 on: March 08, 2011, 07:58:48 am »
It's simple...

The sohc is more awesomer. ;D
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Offline Gordon

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Re: Why do people seem to prefer SOHC over the DOHC bikes?
« Reply #11 on: March 08, 2011, 07:59:47 am »
Quote from: lrutt on March 08, 2011, 04:41:42 am
Yes you can, depending on your area, 20w50 or 10w40 dino, or even syn if you want.

Quick, Mark!  You have a nibble!

Set the hook!!! :o :o :D
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Offline Really?

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Re: Why do people seem to prefer SOHC over the DOHC bikes?
« Reply #12 on: March 08, 2011, 08:18:00 am »
Quote from: Gordon on March 08, 2011, 07:58:48 am
It's simple...

The sohc is more awesomer. ;D

+1
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I don't have a motorcycle, sold it ('85 Yamaha Venture Royale).  Haven't had a CB750 for over 40 years.

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The Kid's Bike - 750K3

Markcb750

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Re: Why do people seem to prefer SOHC over the DOHC bikes?
« Reply #13 on: March 08, 2011, 08:21:13 am »
Quote from: Gordon on March 08, 2011, 07:59:47 am
Quote from: lrutt on March 08, 2011, 04:41:42 am
Yes you can, depending on your area, 20w50 or 10w40 dino, or even syn if you want.

Quick, Mark!  You have a nibble!

Set the hook!!! :o :o :D

Nibble hell, it's already in the Pan!
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Offline CycleRanger

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Re: Why do people seem to prefer SOHC over the DOHC bikes?
« Reply #14 on: March 08, 2011, 08:22:20 am »
Quote from: Spinned on March 07, 2011, 11:11:46 pm
Is it just because they are older?

Which one, us or the bikes?  ;)
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bollingball

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Re: Why do people seem to prefer SOHC over the DOHC bikes?
« Reply #15 on: March 08, 2011, 08:39:32 am »
What's the old saying? If you have to ask?
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Offline Steve F

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Re: Why do people seem to prefer SOHC over the DOHC bikes?
« Reply #16 on: March 08, 2011, 09:50:18 am »
Quote from: TipperT on March 08, 2011, 08:18:00 am
Quote from: Gordon on March 08, 2011, 07:58:48 am
It's simple...

The sohc is more awesomer. ;D

+1
Hell.....ANYBODY can have a DOHC.
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Offline HondaMan

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Re: Why do people seem to prefer SOHC over the DOHC bikes?
« Reply #17 on: March 08, 2011, 09:53:38 am »
Coolness.
Handling.
Power.
Simplicity.
History.
Reliability.
And, there is no full-color rebuild manual available for the DOHC bikes.  ;D
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See SOHC4shop@gmail.com for info about the gadgets I make for these bikes.

The demons are repulsed when a man does good. Use that.
Blood is thicker than water, but motor oil is thicker yet...so, don't mess with my SOHC4, or I might have to hurt you.
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Link to Hondaman Ignition: http://forums.sohc4.net/index.php?topic=67543.0

Link to My CB750 Book: https://www.lulu.com/search?adult_audience_rating=00&page=1&pageSize=10&q=my+cb750+book

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Offline MidTNJasonF

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Re: Why do people seem to prefer SOHC over the DOHC bikes?
« Reply #18 on: March 08, 2011, 10:05:27 am »
Technology and performance averse?






I keed..... I keed.....   :D
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Offline TwoTired

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Re: Why do people seem to prefer SOHC over the DOHC bikes?
« Reply #19 on: March 08, 2011, 11:18:10 am »
Don't the DOHC4s need a $300 in shims to set the valve lash?  Or, have I mixed that up with some other bike?
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Lloyd... (SOHC4 #11 Original Mail List)
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Offline madmtnmotors

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Re: Why do people seem to prefer SOHC over the DOHC bikes?
« Reply #20 on: March 08, 2011, 11:20:38 am »
Quote from: TwoTired on March 08, 2011, 11:18:10 am
Don't the DOHC4s need a $300 in shims to set the valve lash?  Or, have I mixed that up with some other bike?

I believe you are correct, "shim under bucket". Sounds like a new valve cover gasket would be involved too.
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TAMTF...


Wilbur



Projects:
"Evolution": http://forums.sohc4.net/index.php?topic=100352.0
"P.O. Debacle": http://forums.sohc4.net/index.php/topic,126692.msg1441661.html#msg1441661
F2/F3 O-rings: http://forums.sohc4.net/index.php?topic=113672.msg1300721#msg1300721
Cam Tower Studs: https://www.mcmaster.com/#93210a017/=t19sgp
Clean up that nasty harness: http://forums.sohc4.net/index.php?topic=137351.msg1549191#msg1549191
http://forums.sohc4.net/index.php/topic,148188.msg1688494.html#msg1688494
http://forums.sohc4.net/index.php/topic,139544.msg1579364.html#msg1579364
                                          
Charging system diagnosis: http://forums.sohc4.net/index.php?topic=1012.msg8345#msg8345
Get the manuals: http://manuals.sohc4.net/cb750k/
The Dragon: http://forums.sohc4.net/index.php?topic=45183.msg1571675#msg1571675
Headlight Switch: http://forums.sohc4.net/index.php?topic=113986.msg1283236#msg1283236
Branden's leak free top end thread: http://forums.sohc4.net/index.php?topic=107040.0
Engine Lifting Made Easy: http://forums.sohc4.net/index.php/topic,58210.msg1684742.html#msg1684742
                                      http://forums.sohc4.net/index.php/topic,100352.msg1675840.html#msg1675840
Static and Dynamic Timing: http://www.hondachopper.com/garage/carb_info/timing/timing1.html
Airbox Gasket Replacement: http://forums.sohc4.net/index.php/topic,114485.msg1290000.html#msg1290000
"Café" : http://forums.sohc4.net/index.php/topic,84697.msg953814.html#msg953814
PD Carb Choke Linkage: http://forums.sohc4.net/index.php/topic,100352.msg1669248.html#msg1669248
                                    http://forums.sohc4.net/index.php/topic,110931.msg1248354.html#msg1248354
                                    http://forums.sohc4.net/index.php/topic,48858.msg515204.html#msg515204
Follow up on your damn posts: http://forums.sohc4.net/index.php/topic,144305.msg1791605.html#msg1791605
Taiwanese Cam Chain Tensioners:  http://forums.sohc4.net/index.php/topic,155043.msg1774841.html#msg1774841
Gumtwo Seat Cover: http://forums.sohc4.net/index.php/topic,164440.msg1897366.html#msg1897366
Primary Drive: http://forums.sohc4.net/index.php/topic,166063.msg1919278.html#msg1919278
Tank Latch: http://forums.sohc4.net/index.php/topic,165975.msg1919495.html#msg1919495
Shorten your forks: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-shorten-forks-td4042465.html DO NOT CUT THE SPRINGS!
Clutch How To: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-change-and-adjust-a-clutch-SOHC-td4040391.html
Late model K7/K8/F2/F3 front sprocket cover removal: http://forums.sohc4.net/index.php/topic,178428.msg2072279.html#msg2072279
630 to 530 conversion: http://forums.sohc4.net/index.php/topic,180710.msg2094423.html#msg2094423

Sent from my Tandy TRS-80!

Offline jessezm

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Re: Why do people seem to prefer SOHC over the DOHC bikes?
« Reply #21 on: March 08, 2011, 11:31:28 am »
and there are 16 of those damned things, too, I think...
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Offline Deltarider

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Re: Why do people seem to prefer SOHC over the DOHC bikes?
« Reply #22 on: March 08, 2011, 11:41:24 am »
Quote
Why do people seem to prefer SOHC over the DOHC bikes?
What do you mean with "seem to"? :-\
« Last Edit: March 08, 2011, 12:05:41 pm by Deltarider »
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Offline HondanutRider

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Re: Why do people seem to prefer SOHC over the DOHC bikes?
« Reply #23 on: March 08, 2011, 11:44:52 am »
It's sometimes nice to switch around and try another for a while. :)
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Offline wannabridin

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Re: Why do people seem to prefer SOHC over the DOHC bikes?
« Reply #24 on: March 08, 2011, 11:46:03 am »
Quote from: HondaMan on March 08, 2011, 09:53:38 am

And, there is no full-color rebuild manual YETavailable for the DOHC bikes.  ;D
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1976 CB750K, currently under construction:
http://forums.sohc4.net/index.php?topic=64468.0

-And if you don't do it this year, you'll be one year older when you do...
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