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Author Topic: ID this carb? PIC  (Read 716 times)

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Offline BlackMax

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ID this carb? PIC
« on: July 30, 2009, 05:41:45 PM »
The bike's a supersport ('78).   The motor is a supersport, but NOT original for this bike.  I would be surprised if somehow the carb is somehow not from the bike or the current motor.....but who knows.  Someone said it's  from an automatic?  On the right side, the numbers:

        PD
 42A  [A]  QD2

Also, this doesn't seem to be an accelerator pump carb.....#2 looks just like the rest?  Am I wrong??

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1978 CB750SS, 4-1 Yoshi, Pods, 3-angle valve job, ported chambers, ported intake, 41a cam

Offline punch455

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Re: ID this carb? PIC
« Reply #1 on: July 30, 2009, 05:53:24 PM »
PD42A carbs are stock for the 77-78 750ss.  They do have an an accelerator pump on the #2 carb, but it's deceivingly small.  The casting for it in the #2 float bowl is about the diameter of a nickel.  Also, if you remove one of your pod filters, you'll notice a brass post on the inlet side of the carb throat. That's the squirter.
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'78 CB750F
Daytona Bars
Bar-end Mirrors
Custom Rearsets

Offline cb750fbomb

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Re: ID this carb? PIC
« Reply #2 on: July 30, 2009, 05:55:29 PM »
You already have it. It's a PD42A

http://www.hondachopper.com/carb.specs.html 

78     CB750F     PD42A     2     14.5     105     35     NA     
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'77 CB750F2
“The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at or repair.”

Offline BlackMax

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Re: ID this carb? PIC
« Reply #3 on: July 30, 2009, 05:57:43 PM »
Quote from: cb750fbomb on July 30, 2009, 05:55:29 PM
You already have it. It's a PD42A

http://www.hondachopper.com/carb.specs.html 

78     CB750F     PD42A     2     14.5     105     35     NA     

Outstanding!  thanks!!
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1978 CB750SS, 4-1 Yoshi, Pods, 3-angle valve job, ported chambers, ported intake, 41a cam
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