Can anyone tell me the size of this carb?

[Kaituna]

Hi, I would like to know the size of this carb from the numbers on the side of it. I tried uncle google but it is not very obvious. the carb is a Keihin FCR 3925D.
What say you most knowledgeable people? I am going to stick it on my DR650 all going well.

[Oscar]

Hi, I would like to know the size of this carb from the numbers on the side of it. I tried uncle google but it is not very obvious. the carb is a Keihin FCR 3925D.
What say you most knowledgeable people? I am going to stick it on my DR650 all going well.

Did you pinch that off my KTM?
http://www.keihincarbs.com/images/fcrsma2.jpg
They come in diameters of 33/35/37/39/41.

Go here - http://www.keihincarbs.com/home.html

[Oscar]

..........
http://www.keihincarbs.com/images/FCRexplo.jpg

[husaberg]

Hi, I would like to know the size of this carb from the numbers on the side of it. I tried uncle google but it is not very obvious. the carb is a Keihin FCR 3925D.
What say you most knowledgeable people? I am going to stick it on my DR650 all going well.

39mm (its in the carb id.)
If you can't find the id on the net try these guys site.
http://www.sudco.com/sudco%20catalog.html
Download the cattledog anyway.
You could measure it.but Kehins are not generally straight bores plus seem to be measured at the venturi anyway.

[Kaituna]

Thanks for the info :) I am encouraged that what I have bought is a 39mm and look forward to having at least half the wheel standing grunt that a KTM 520 seems to have.