My OS 46AX doesn't prime when hot. It wasn't like this when I first bought it, it's been two months now and I've tried my best to preserve it from any damage or lean run.
Probably this is how they are, no?

Also when hot, I doesn't show any sign of compression, and I can't start it with a chicken stick. I need the electric starter to spin it.
Usually, when I land, I just wait 5min before refueling and taking off again. That will cool the engine, and I will be able to start with a chicken stick from the first flick!!

Works all the time...