Re: just for fun
You've discovered a community of like-minded folks who have found a way to have fun with bicycles. Namely, motorized bicycles.
And you are correct. We don't mind answering the same questions over and over. Nevertheless our 'Search' feature is a valuable source of information that will address every aspect of building a successful and reliable motorized bike. It's always there for you but if you have specific questions someone is always here to help and offer advice.
Good luck, have fun and ride safe.
Age and Treachery Will Always Triumph
Over Youth and Skill & "Charlie Don't Ride"