RE: need help please ?
if it has 2 shocks mounted so they are laying flat on the rear and agian on front of the vehicle, it s a yankee as noted above. you can occasionally find parts on the Bay, right now there are 2 Yankees on the bay, one is a rtr Truck with the F7 motor, and the other is a RTR Porche. maybe if you seach ebay for yankee in the rc area, you ll see these 2, and they can confirm or help see if its the same.
Kawasaki USED to make small motors like these, but im not sure if they still do.
i remember a friend of my dads has a Kawaski powered String Trimmer back in the late 70s.
Timmahh