They're flat silde Mikuni carbs. I believe they are actually TM series carbs if I remember correctly. FTZ is the company that converts these carbs to alky, but since the dumps are replaceable in them they can be switched to gas. I just found the link to the gas carbs too. FTZ carbs You can get parts for these just as easy a Keihins.
If think your bike is able to handle PWK 35's then I'm sure these carbs will be fine on it.