My Brillelli 26 is very prone to gas problems. I ended up with a filter in the fill line, a clunk filter, and one in the gas delivery line to keep the jets fron getting clogged. If they are clogged I had to remove them and wash them out with gas.
If its flooded open the throttle wide open and crank it with the starter until it clears out and starts.
Do not try to fly it with a spark plug that does not have an R in its number. You will not get your airplane back.