No worries, not all is lost yet. Take the cover off the side opposite the primer and compare the diaphragm and needle. Place both carbs side side on a nice white towel or paper towel so you don't lose any of the little parts. You can then swap the new diaphragm and needle for the old ones on the OE carb.
Does the OE carb (Zama) pump fuel with the bulb? Just push down on the bulb gently and check for any tiny crack in
Have new carb coming but Switched out the diaphragms, pretty much the whole bottom cover and the whole top cover between two carburetors and used the original OEM carburetor. Here's a picture of the old diaphragm
And the difference between the needles.
Got it started. Partially choked,It was running and I hit the throttle and it died.
Then I got it started again a few times we runs for like 10-15 seconds and dies.
So from here do I adjust the L clockwise or counterclockwise