I Put a Predator 212cc engine in the ATV, and it still has its original gearbox for forward and reverse! I use a TAV2 30 series torque converter from Ebay to replace the stock torque converter. I will do a top speed run test once its ready. I am guessing it will do 25 or 30 MPH.
short test drive at the end of the video.
I plan to do more on this project and post more videos soon.

I hope you enjoy watching.