Drive Drive Drive

Whizzer motorbike chain conversion? Is there a way to change the Whizzer motorbike to a chain drive? by way of a kit or similar? and does it give a better top speed? To uncleanel, The Whizzer is basically a beach cruiser bike with a small 4 stroke engine attached, and a bunch of accesories to resemble a motorcycle, but can still be pedal powered, and is still a bicycle. am I right? or is it really considered a motorcycle after those parts are added?

how to tighten whizzer drive belt? i have a 1999 whizzer motorbike and i need to know how to tighten the drive belt. thanks--scz