Smart Hayabusa, part 5.3: main shaft fab, reverse testing and engine installation!!!!!!!

Ho yeah!!! I'm getting closer and closer to get that go-kart running! This is the installation of the hayabusa engine in the subframe, the fabrication of the main shaft and the testing of the reverse! I can almost smell the burning rubber! My reverse ''starter motor: https://amzn.to/39XixrV