1975 Kawasaki KX400 Reed Valve Systems
- Boyesen®Power ReedsKawasaki KX400 1975, Power Reeds by Boyesen®. Boyesen Power Reeds use a patented dual-stage fiberglass design for more airflow, more air velocity and more overall power. This top-grade product is expertly made in compliance with...More overall powerTop reed opens at lower RPMs allowing for more air and fuel flow giving you better throttle response$34.15