Description
- 1974 YZ80A – Crankshaft – Piston Yz80c
- 1975 YZ80B – Crankshaft – Piston Yz80c
- 1976 YZ80C – Crankshaft – Piston Yz80c
- 1977 YZ80D – Crankshaft Piston Yz80d
- 1977 YZ80D – Crankshaft Piston Yz80e
- 1977 YZ80D – Crankshaft Piston Yz80f
- 1977 YZ80D – Exhaust Yz80d
- 1978 YZ80E – Crankshaft Piston Yz80d
- 1978 YZ80E – Crankshaft Piston Yz80e
- 1978 YZ80E – Crankshaft Piston Yz80f
- 1978 YZ80E – Exhaust Yz80d
- 1979 YZ80F – Crankshaft Piston Yz80d
- 1979 YZ80F – Crankshaft Piston Yz80e
- 1979 YZ80F – Crankshaft Piston Yz80f
