Hi all, I have a Yamaha G-16 that's not running properly and started sputtering and dying as if it wasn't getting fuel. I replaced the carburetor and it ran ok for a while now it is doing it again. I put the old carb back on and it started right up but stalled. Upon trying again it wouldn't start and gas is pouring out of the carb. I pulled the plug and it is soaked with fuel. I was getting spark before but now when I pull the plug I have no spark. Sound like an ignition issue? Where do I go next?