50cc Yamaha Motorcycles From Days Gone By ... could prove difficult unless you happen to get lucky. The Yamaha Motor History timeline first lists the YB50 and similar YB-1 Four as 2000 model ...

At last year's Tokyo Motor Show, Yamaha introduced a fuel cell scooter called the FC-me. It ran on a liquid methanol-water solution and its size and performance would have fit nicely in the 50cc ...