I bought a Shindaiwa eb-45 back pack blower used and It looks like a home owner hardly used it. Even though it's a older unit, the compression is very strong..I got it running then it started to flood the engine. I removed the spark plug and turned it upside down drained the fuel out of the engine and waited for the fuel to evaporate. After a couple of hours, i tried to start it again. Within a couple of pulls it flooded where gas is coming out of the muffler. Since it was old, I replaced the fuel lines, rebuilt the carb, check the spark, and removed the muffler and the exhaust screen. This time it will not start and floods within a couple of pulls again. HELP