I know this is an old topic, but I wanted to say that my R9 also cracked on the lower plastic area. It did this when I jumped it over some of those really big speed bumps. Not the steep ones, but the slightly sloped ones that you can hit fast. I imagine the frame flexed enough to make it crack. I never had any cracking issues until I did that. Cracks in the plastic should not affect the inspection in any way since they are not structural and plenty of scooters and bike do not even have plastic fairings. If it really bothers you then just "stop drill" the crack and fiberglass the back side. Since the fiberglass will be on the inside you can be as messy as you like and nobody will ever see it.