NOTHING is idiot proof. lol. But it looks like a really solid product.
I wonder how much you have to invest to collect starting tools. Probably more than a regular tap and die set. Ouch. Still probably cheaper than taking something to a mechanic these days.
I had a pocket bike once and mechanics wouldn't even look at it. No one even wanted to help me patch a tire on it. Probably the same with these motor kits.