RE: ZDZ 50NG STARTING
Make sure it's properly primed. You will hear a squishing sound in the cylinder. Also try choking it, maybe 1/2 to 3/4 choke for the starting flip. Both of mine are starting just fine. If it starts and dies after a few rotations or doesn't start at all, I go back to the priming process. It always starts eventually after the thing is properly primed.