Re: Starting Rickshaw business - PLEASE advise
Pedal power Baby! - slow and quiet. That is the attraction. An engine would be a distraction.
If other people around the world can pedal, so can you - short of any medical issue or disability.
Not knowing the laws in the State of Texas, I would doubt that you could motorized such a vehicle, especially if your carrying passengers. Also consider that you may not be able to get liability insurance if it is motorized. Carrying passengers from bar-to-bar, I would definitely have some insurance and maybe required by State or local laws.