I bat a new gas side shaft 6.5 hp ohv vortex engine this engine does not start. I added oil and gas and pulled on the rope. The engine sends fire out the carb as though the timing is off. I tried putting a small amount of gas down the carb. And Iv Pulled the spark plug and replaced the spark plug with a new one, I tried pulling the plug and poling the starter rope to are out the cylinder thinking I mite have flooded the engine. I checked the compression at first it was 48 psi so I lapt the valves to seet them that brot the compression up to 125 psi. But the engine keeps spiting fire out the carb. It seems like a timing problem. I’ve check the flywheel no problem their. I've tried disconnecting the yellow wire and nothing. I have vary hot spark and I am now its getting gas. I'm thinking it might be a leaky intake valve. I do not now how to do a leak down test. The valves are set at .006 exhausts and .007 int. That seems a bit close?