Top plugs, bottom plugs, they all get wet if you get some gas into the jug. The RCGF 100 likes to start on the "wet" side. At least mine do. The fact that it's getting to pop means the carb is working so the rest of it is simply technique. Listen to Rcpilot and give it a shot of prime if you can access the carb. If using the stock 14mm plug use a .025" plug gap.