Re: New to motorized bikes
Welcome to the forum. You'll find lots of help here to get you started on your first motorized bicycle project.
You'll also find that there are plenty of big guys building and riding these things and many use the standard Chinese 2 stroke engines. You might also want to explore our 4 stroke section as an alternative.
Whichever way you decide you're in for some fun. Take your time and do lots of reading here or just ask if/when you need help.
Good luck and keep us posted on your progress.
Age and Treachery Will Always Triumph
Over Youth and Skill & "Charlie Don't Ride"