First of all, I really am getting old and pushing 75 years old and computer stupid. This is my 2nd attempt to send this, I clicked on "spell check" and it deleted the entire message. I started building motorbikes back in 1952 with a lot of help from old guys like me, then that went to motorcycles. In 1954, I bought an engine that said "PUMA" on the side and I think it was an early Triumph made in Germany about 1939, at least before WW-2. This thing was never ran and with help, mounted it in a Jawa frame that went faster than I wanted to go. Since that time, I have owned several motorcycles and Bridgestone was my favorite with the rotary valves. I now own a replacement engine that has never been ran, a 50cc Step Tru engine that I intended to put in a 24 inch bicycle frame but have never been able to find one like I want. I have a motorbike that I made out of a mountain bike with a Stihl 009 engine in it that has taken me 42 mph, to fast for a bicycle. My wife is wanting me to sell this stuff, the 50cc Bridgestone might be for sale in the near future. By the way, what is a "TAG" that is below the "SUBJECT"? I never done this computer stuff before and having a hard time getting into this sending messages. Oldguy