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Author Topic: DOHC vs SOHC  (Read 5671 times)

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Offline zaskar

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DOHC vs SOHC
« on: July 11, 2010, 04:33:13 AM »
Im trying to buy a bike to start a relationship with. Im being teased by a well priced DOHC 1979 Honda CB750. Can people please bring me to my senses. WHy it is that there is so much more passion around SOHC than with that of the Honda DOHC?
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JTFormula

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Re: DOHC vs SOHC
« Reply #1 on: July 11, 2010, 06:46:40 AM »
I have owned both. A 1976 CB500 (SOHC) and a 1980 CB750 and currently have an 81 CB900c (DOHC's). I think the lure of the SOHC being the original tends to make people more prone to lean towards those. Of course, the site you are on will be a bit partial to the SOHC bikes but the DOHC 750 will be a fun bike for you to ride. Plus I think you can get those for a slightly better price.
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scrapvalue

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Re: DOHC vs SOHC
« Reply #2 on: July 11, 2010, 07:34:40 AM »
I really like the SOHC because of the simplicity of the engine.
Big fan of having an easy to work on bike.
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traveler

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Re: DOHC vs SOHC
« Reply #3 on: July 11, 2010, 08:11:58 AM »
don't the DOHC's have electrical issues?

~Joe
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Offline kck3

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Re: DOHC vs SOHC
« Reply #4 on: July 11, 2010, 11:59:36 AM »
Yeah they tend to have charging issues.
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Offline Alan F.

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Re: DOHC vs SOHC
« Reply #5 on: July 11, 2010, 03:40:10 PM »
Shim and bucket lifters too, no adjusters in those engines.  Later ones went to a hydraulic valvetrain.
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traveler

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Re: DOHC vs SOHC
« Reply #6 on: July 11, 2010, 08:24:01 PM »
when did the hydralic's come into play then?? 

~Joe
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Offline Alan F.

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Re: DOHC vs SOHC
« Reply #7 on: July 12, 2010, 06:22:24 AM »
I'm not exactly sure, but I thought it was somewhere during the 79-82 style, hang on a minute.........

OK looks like  I was mistaken, 79-82 CB750 all include the Valve Tappet Shims (says bikebandit's parts fiche) item #13
Shims seem to be still available though.

The 1983 CB650SC was the first model in the US to have the hydraulic adjusters, item #7

All of the wisdom for those bikes can be found at http://www.cb1100f.net/ and a few places.

« Last Edit: July 12, 2010, 06:34:40 AM by Alan F. »
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Offline HellFishTat

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Re: DOHC vs SOHC
« Reply #8 on: July 12, 2010, 01:58:54 PM »
My first bike was a '85 CB700S.  I loved that bike.  Probably REALLY frowned upon here, but DOHC, Hydraulic Lifters, Shaft Drive.  It was a perfect commuter bike, plus it was fun as hell to ride, and looked pretty good (still in mho).  I'd buy another one in a second if I could find a decent one and my wife wouldn't divorce me for it.
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Offline turboguzzi

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Re: DOHC vs SOHC
« Reply #9 on: July 12, 2010, 02:09:26 PM »
Quote from: zaskar on July 11, 2010, 04:33:13 AM
Im trying to buy a bike to start a relationship with. Im being teased by a well priced DOHC 1979 Honda CB750. Can people please bring me to my senses. WHy it is that there is so much more passion around SOHC than with that of the Honda DOHC?

with all due respect to sohc's, a nice freddie spencer replica is hard to beat in terms of appeal. go for it.

TG
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