BS34 carbs, but from what bike?

[JTGS850GL]

Good info everyone. Thanks. 1000G carbs they are then!

I've got the carbs to the point where I'm putting them back together now. Bead blasted the outsides and replated all the hardware.

The float heights are really low. In the range of 18mm. The float needles and seat are OEM so I'm confused about the float height. I put a good bend on the float tang and now I've got the float height up to 20mm or so. I'm going to try them and measure fuel level the way they are. There is no reasonable way to get them up to 22.4mm like the book says. I've seen this before on different carbs but never have understood why.

Ya, seen the same thing as well. Seems like some require a very large bend on the tab while others are almost flat. Seems like swapping the needles out makes the biggest difference. I'll pay a little more attention next time to see if I can nail it down as to why. Maybe chef can chime in as well.