I've had my motor some time now but it was only back in July or so when I came here I could begin to get info to get it up and running. I bought it used and didn't get it very complete. Since, I've about found about everything I've needed, torn down the motor and gone thru it, mounted it on my regular cruising 5 spd Ross 27" bike. (for now) I've used that bike as a testbed for getting this project viable.
It weighs between 10 to 15 lbs and is most noticable at low speed or stopped as you don't have the gyroscopic dynamics of a spinning wheel which counteracts the weight somewhat when under way.
The only thing is that it doesn't have the "eye appeal" of a Chinese HT set up which gives the "motorcycle" appearance. (if that's something you value)
I can mount and dismount this motor in minutes now as I've rather well learned it foreward and backward. So my next build will be a replica of the first photo below only it won't have the 4 cycle motor in the lower frame and all the transfer stuff. I'll just set my motor on the front forks of the replica I'd build. Hopefully I'll have something to ride over to the Farmers Market.
The white plastic hood on my motor is the form Sears used to sell it in. Called a "Free Spirit" bike motor. Bike Bug, Aqua Bug are nearly the same thing without the plastic hood and all the mechanical components are exposed.(see the last photo) The white hood quietens it some and covers a long thin fuel tank like a string trimmer. It appears rather bulky to the general public by their first impression. The Bikebug uses a canteen styled fuel tank. I'm forever being asked about the gas milage and how much it all weighs ?
I've seen these types of motors since I was a kid and now (finally) I'm getting to do something I really wanted to do back then.