wonder if anyone out there might have a sourse for a new Mikuni carburetor that will fit a 74 Yamaha DT360? I tried Dennis Kirk but the bell size is too big, original carb has a 1-3/4" bell, the equivolent 32mm carb has a 2-1/4" bell opening. 

A VM30-83 slides right on. The air box side if 58mm though and will require either a different intake setup or in my case a pancake filter. I have also run a VM32-133 the same way.

I never got a chance to finish testing it,but it ran well right out of the box @ 1&1/2 turns on air screw. Let me find the pic on my bike and I'll post up.

Note, I modified the cap for the elbow.

There isn't.

It's stock carb, or ditch the factory air box.