I was originally looking at using the Aerovironment Turbocord - portable 120/240V EVSE and was advised that particular charger would have issues with pulling from my generator given the L14-30P it uses for 240V. Since I was looking at charging from the 240V on my generator I gave EVSE Upgrade a call. I sent Mark the info on my generator and he was extremely helpful.
Set me up with a Nisson Leaf charger that I can charge via 120v (with appropriate pigtail connector) and 240v (with a bare pig tail). I had to source the Male L14-30P plug that I needed for my generator and connect it to the bare pig tail.
Did a test tonight and all appears well. Plugged in to my generator's 240v slot it is pulling at 21amps and shows a much lower charge time than the wall plug does. No circuits popping on my generator and charger itself is showing no faults.
I'm happy. This will help greatly to keep me charged up at the track.
Pic of setup is below: