Description
Features:
- Dual stage reeds
- Minor change gives major H.P. improvements
- Faster opening and closing
- Greater low pressure (Low-throttle) response
- Greater velocity and flow area
- Longer overall life
- No engine damage if broken
Fitment
Yamaha WR500 1992
Yamaha WR500 1993
Yamaha YZ250 1984
Yamaha YZ250 1985
Yamaha YZ250 1986
Yamaha YZ250 1987
Yamaha YZ250 1988
Yamaha YZ490 1984
Yamaha YZ490 1985
Yamaha YZ490 1986
Yamaha YZ490 1987
Yamaha YZ490 1988
Yamaha YZ490 1989
Yamaha YZ490 1990
