Yea when we test it we throw on the plywood as our temporary shield from the sprockets and chain. As for the front tires, they are also just for low speed testing as well. I wouldn't trust my safety to anything purchased at harbour freight.
As for the pedal setup it is going to be gas and break...
It works. Built from absolute scratch from a junked KX65 and clone GX390 generator engine. Still dialing in the gearing, but it's close. Anyone try this before and have input and/or questions?
See it in action:
https://youtu.be/APDVUaGqp6s