of that model maybe but the 1986 YZ500 OW66 was also called a YZM as were heaps of other bikes of multiple cc's and years.
Like the 1983 YZM500 OW50
I found this 1983.
Satoru Shoji's '83 All Japan Championship winning works bike
It might be an interest to Frits and Jan
Yamaha rotary disc valve 125. OW67 or 1983 yzm125
I have not seen this one mentioned previously.
it also race in the USA and by the look of it Europe
Bookmarks