Ok you say you have a spark and what you say indicates a fuel problem.
Sorry I cant see the diaphram in the parts list.
Of course the plug may be wet from you frantically trying to start it.
Have you ever had it running properly?
It couild be just tuning, or as I say the diaphram.
This carb is different to those I have seen on Stihls and Huskies. I have to say I am not a mechanic but we use saws and suchlike at work a lot. Usually you carefully take off the top of the carb being carefull not to danage the gasket, a mechanic would always fit a new gasket. Inside you see a diaphram which has a little flap that does the fuel regulation, this is instead of a float to enable the machine to work at different angles. This can get tacky if the machine is not run dry before storage. You could try cleaning it but usually you would fit a new one. I would say the machine needs a service if you are not mechanically minded.
The handbook should say how to set the high and low running jets to get it going but again experience or a mechanic is best.
I dont know what your machine costs new but you may find the service, or even a carb service kit makes buying a new machine worthwhile, the smaller ones are not so much nowadays.