Originally Posted by silverbear
A word regarding vendors and engine size. I would just go with the 66(80)CC. They're more common, look virtually the same and will give you more power. Cost about the same, too. One good vendor I'd recommend is Priate cycles. The PK-80 engine is good running and strong. Justin stands behind what he sells and is a good guy. You can buy cheaper on ebay, but if something is wrong will the seller stand behind it and make things right? I'd pay a little more and have some piece of mind. Welcome to the forum. You can always upgrade later to a shift kit if you decide you need some help with gears.
Thanks Silverbear for the recommendation. However here in AZ they are pretty strict regarding motor size and here it's 48cc max. Other AZ residents may take the chance but not me.
I have visited the Pirate Cycles site and they have some nice stuff. I also agree about finding a vendor that has a good rep for standing behind their products. Thanks for the input - Doc