Portable generator tent

Remember I bought a Honda generator last year? Handy little thing. But the weather that makes me want to stay inside and run the computer off it for hours on end is the same weather that the manual says not to have it out in. What to do?
I normally put the generator on the scooter's floorboard and lock it up. No one will swipe it easily and if I had to drive away in a hurry, it wouldn't fall off. So for drizzly weather like this week, a framework of PVC pipe supports a tarp tent over the whole thing. No puddles, no drizzles.