Description
Features
- Greater low pressure (Low-throttle) response
- Greater velocity and flow area
- Dual stage reeds
- Longer overall life
- Faster opening and closing
- No engine damage if broken
- Minor change gives major H.P. improvements
| 1983 | Yamaha | It250 |
| 1982 | Yamaha | It250 |
| 1981 | Yamaha | It250 |
| 1980 | Yamaha | It250 |
| 1979 | Yamaha | It250 |
| 1978 | Yamaha | It250 |
| 1977 | Yamaha | It250 |
| 1979 | Yamaha | It400 |
| 1980 | Yamaha | It425 |
| 1982 | Yamaha | It465 |
| 1981 | Yamaha | It465 |
| 1984 | Yamaha | It490 |
| 1983 | Yamaha | It490 |
| 1989 | Yamaha | YZ250 |
| 1982 | Yamaha | YZ250 |
| 1981 | Yamaha | YZ250 |
| 1980 | Yamaha | YZ250 |
| 1979 | Yamaha | YZ250 |
| 1978 | Yamaha | YZ250 |
| 1981 | Yamaha | YZ465 |
| 1980 | Yamaha | YZ465 |
| 1983 | Yamaha | YZ490 |
| 1982 | Yamaha | YZ490 |
