125-200cc cr ignition help

It seems I have a gremlin in my cr165. The last two times I've been out riding , when the bike gets hot (riding hard) I lose spark. When the bike cools I have spark again and the bike fires first kick. i went through all the connections and they seem fine. I'm thinking a stator could be going bad (old seems units did this when they got hot) but I'm not sure of the husky units. I suppose I could go through and replace the cap, wire, kill switch and eventually the stator but I really would like to get this gremlin cured first swing.

Thanks
K

It could be either the coil or the stator wiring having an intermittent short when they get hot. You can get them both hot and when the problem happens check your resistance across the igniter stator coil as well as the upper coil. The stator coil should have 23-28 ohms resistance.