Newbie here seeking information. I've been contemplating a build for sometime but have the following concerns: The kid down the street has a motorized scooter and the noise it makes just drives me crazy. I want to build a bike but don't want such a shrill noise for me or my neighbors. So, the questions is are there quieter mufflers available or would it just be better to utilize a 4 stroke? I am making the assumption that a 4 stroke is inherently quieter than a 2 stroke. Going fast is not a concern. I just want to be able to complete local errands within a mile or two from home without having to light of a V8 engine to go a mile to the store. Traditional scooters while quieter,(hondas, vespas etc.) require registration and insurance and completey negate any savings on gasoline. Opinions appreciated.