2 stroke. will have spark then loose it

[hvactech]

I am tryin to figure out this crazy thing. i bought it and it wasnt getting spark, so i put new plug and stator in it and it fired up and ran great. then went to go start it again then no spark, let it sit for a few days started looking into it and found that it had the remote start, so i pulled it off and did the bypass (green and dark green wire together) and it ran fine. rode it 10 miles around town, filled it up stoped a few places. got it home parked it then a few hours later went to take it on a spin and no spark.

Not sure what to do next, CDI or kill switch or what