Super Jet What kind of dual carburetor is this?

[ccr07]

Hello. I recently bought a 1990 yamaha superjet 650 and the guy gave me this mikuni dual carburetor with it. I was wondering if anyone knew what kindo of Mikuni dual carburetor it is and what it came off of or what it will go on. It looks like the base lines up with the holes on my 650. What would be the benefits of using this on my ski or should I just sell it and how much is it worth?

Top View:
Side View:
Bottom View:

Thank You for Your Help,
Chris

 

[wanderer1]

Looks like BN 38's that have been taper bored on a Pro Tec intake

 

[kx454]

1965 junk

 

[JetManiac]

Better with the oem 44 on your 650 and kick that dual carb fossil down the road over at pwctoday.