Jerry, adjusting chainsaw-style carburetors, whether on chainsaws or on brushcutters or leafblowers, is something of an art. The procedure is set out in the various manuals, but from where you are at present, there are two main steps I suggest you follow. First, go to the SDC manual Deejay referred to and look at page 6. Follow that procedure to get your metering lever setting right. This is not normally necessary, but you have replaced diaphragms so it needs to be set now.
Second, download the Walbro technical manual, here:
http://wem.walbro.com/distributors/servicemanuals/ServiceManual.pdf
On Page 20 you will find a more detailed tuning adjustment procedure, reproduced below:
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That procedure on Page 20 should apply to any Walbro diaphragm-type carburetor, and I tend to use it as a basis for tuning other brands as well.