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
| 1993 | Yamaha | WR500 |
| 1992 | Yamaha | WR500 |
| 1988 | Yamaha | YZ250 |
| 1987 | Yamaha | YZ250 |
| 1986 | Yamaha | YZ250 |
| 1985 | Yamaha | YZ250 |
| 1984 | Yamaha | YZ250 |
| 1990 | Yamaha | YZ490 |
| 1989 | Yamaha | YZ490 |
| 1988 | Yamaha | YZ490 |
| 1987 | Yamaha | YZ490 |
| 1986 | Yamaha | YZ490 |
| 1985 | Yamaha | YZ490 |
| 1984 | Yamaha | YZ490 |
