Yamaha YZ80
The Yamaha YZ80 was a two-stroke motorcross dirtbike made by Yamaha starting in 1974.
1974
- SERIAL # 462-000101 - 009661
1975
- SERIAL # 492-000101 - 018570
1977 YZ80D
1978 YZ80E
- First year of the rear monoshock 80 was 1978- YZ80E, code 2J5.