Topic: 050A Carbs

[nccb]

Could anyone tell me what year/bike the Keihin 050A carbs were on?  I have acquired an extra set for my 750 but I am starting to think these might have been for another bike. . .I tore them down a while ago but never thought to check until I started dropping them in some chem-dip.

[nccb]

http://www.motorcycleproject.com/motorcycle/text/specs.html

I'm not even seeing the casting number here


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[MiGhost]

Is it possible that they are the PD50A carbs?
79-80 Cb650, CB650C
26MM, 35 pilot, 90 main

[nccb]

Probably so   Guess I need finish cleaning them then try to sell them.  I bought them from a guy who took them off of a '75 750, or so he said.  Didn't know enough then to ask for casting numbers and probably wouldn't have known the difference either way (probably still don't).  Thanks for the help.

[thrutheframe]

Do they have an accelerator pump and air check valves?

[nccb]

No, not that I saw which I am assuming they would be noticeable.  When I disassembled them they looked like what I have on my bike and broke down like my clymer's manual outlined for my 750.  I'll try to get pictures of them up by friday.

[nccb]

Here are some pics of the number 4. Sorry I have everything broken down in little foil pans. Second, do these posts look to corroded?  The feel pretty sturdy but may be to far gone?




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[MiGhost]

Deffinately not the PD50 carbs.

The only reference I found on them.
http://archives.sohc4.net/index.php?topic=366.0

[nccb]

Thanks MiGhost,  I can't seem to find much on them either besides one mention on this forum in the "What did you do to your bike today" thread.  I guy had one 050a carb mixed in with his rack but no one gave any mention as to what bike they typically went with.