I've always heard bad reports about diesel in stoves, even ones that are supposed to burn it.
As far as priming with kerosene... I read folks saying they use alcohol or white gas for priiming when burning kerosene. I figured that was mostly to avoid sooting up, but it may heat up the generator faster too. Some even carry alcohol to prime white gas stoves, but I think that is mostly folks using gasoline. I imagine that is mostly because gasoline soots up worse than white gas.