Re: Help!! Newbie Here!!!
All of your concerns have been addressed before in this forum Classic Instructions for Building and Repairing Motorized Bicycle Engine Kits - Bicycle Engine Kit Classic Posts at Motorized Bicycle Forum
Do some reading there and you will find a LOT of good info and answers to questions you've not thought of yet.
Welcome aboard and good luck.
"I would rather be exposed to the inconveniences attending too much liberty than to those attending too small a degree of it." - Thomas Jefferson