Does any one know what the Walbro Carb number is on the DA-100

Only fair to call DA and ask them. They're the ones that ground the number off....To be fair, no I don't know it either.

I called DA with a question about my motor recently and also asked what carb was on it. They told me it is a WJ-71. For some reason they used some sort of engraving tool to remove the number on my carb.