I have had the RF100 for over a year now, and I have to run it with cover lose. When I tighten the cover down, the primer stop moving. I tighten the cover just enough to keep the bolts from coming loose. If I don't tighten them down, the bolts back out all the time. Which well you guessed it, I have to stop and re-tighen them. If anyone has any ideas or had this happened to them can you please help me out.