Wolftrax, I called Horizonhobby about the flywheel problem. They told me I had two options. 1. I cold grind down the collet on the wider side so that the flyhwheel would go in further. 2. Or I could just tighten the clutch nut down until it only has a small space left.

I choose option two and it worked. I had two add only one shim near the bearing to keep the right amount of play.