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buell1948Sun May-25-08 07:20 PM
Member since Mar 18th 2009
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"BSA A50R?"


  

          

I got this BSA from my father who had it stored for 20 years. I am trying to indentify the year and model and I am stumped. So I started a tear down to see what I could find.

I started pullin apart the BSA and found some carb numbers. The number on the carb is R928, which according to the Haynes BSA A50 & A65 Twins Workshop manual page 37, is a '71 or older Thunderbolt carb. The front end is a '71 front end. The engine number is 71-1033, and the frame number is A50R 7038. Is this a Thunderbolt engine in a Royal Star frame?

Any ways, the front fork tubes are a mess, need new ones. The front brakes are great just need shoes. The engine has no compression, I think a rebuild is in order. Otherwise mechanically sound, will probably be running soon barring any major problems.

I will post some pictures of the carb and engine #'s. I am confused with these.
Also I have the tank for sale on ebay.

  

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johnandnzSun May-18-08 07:50 PM
Member since Mar 18th 2009
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#1. "Deleted message"
In response to Reply # 0
Sun May-25-08 07:17 PM by webmaster

  

          

No message

  

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NortonGuySun May-25-08 07:19 PM
Member since Mar 18th 2009
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#2. "RE: BSA A50R?"
In response to Reply # 0


  

          

I am curious why you have the tank for sale. Are you going to part it out or restore it?

  

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