I put some paint on mine early last year, and then rode a bunch of miles since. My bike has not burst into flames, crashed, burnt any wires, blown any fuses, over heated, under heated, char-b-qued, electro-statically discharged, melted, cooked, burped, farted, or even smelled funny since.
My carbs give me fits, but I suspect that's simply due to the choice of color
I used...but who the hell knows, ya know?
Mine looked worse than dog poo when I pulled it out from under the battery box, but it worked fine, (and still does-knock wood) Cleaning wasn't enough, but a little paint and it blends right in. One of my buddy's thought it was from the factory.
If the paint helps keep the thing warm, then having it exposed to more air flow should help balance that out.
Now, just wait for it.....