Fuel at the throttle plate (FLOODED). ain't gonna fire if flooded.
You said you put in new gaskets on the carb., did you buy a kit? If you bought a kit why did you not replace the needle and seat? DOHHH!!!
Charge battery, have tested (2-10 sec. uses ain't normal)
Block off fuel to carb., remove plugs (do they smell like fuel), open throttle plate (WFO), with charged and tested or new optima 6V battery (if bad), spin the engine over, (we are clearing the fuel from the motor) When the battery begins to weaken, stop and recharge, leave the throttle open. If the plugs smelled of fuel or were wet with fuel you might as well go get some new ones. They don't dry out very well.
Before we do this again we need to address the carb. problem. These carbs. are a snap to o/h but you know your machanical abilities better than I. Have it overhauled or replace it. I would replace the float if you do the job your self (it won't come with the kit).
While the carb. is off spin the engine over a few more times. Look in the intake is it still wet? If no put the carb. on and install the new plugs.
Recharge the battery and lets cross our fingers and try again.

I didn't do it, no one saw me do it, you can't prove anything! "Bart Simpson"