I thru a stock high torque engine together, but the cylinder was really bad. I didnt think it would work. The walls were rusty, and even after a good honing it was still pitted. I figured I would see how long it would last. Well it lasted about 100 miles. The last 15 mile ride home were fun, super slow take off but would creep up to 38mph. It didnt have much compression and didnt sound real good either. When i took it apart today to replace the cylinder and piston, this is what i found.