- Precision-machined from C630
- Compatible with no-lead fuel and accept any type of valve-stem material
- Provide maximum service with chromed valve stems
- Feature a tapered nose design for maximum bearing service and minimal port obstruction; improves flow characteristics
- 2.02" overall length, .560" top diameter, accept OEM-style top hat valve seals (sold separately)
- Accept OEM lower collar
- Overall length is 2.40?ǥ
- OEM style
- Machined for std. .420?ǥ seal and can be used as an intake or exhaust guide
- Made in the U.S.A.
Yamaha -- WR 400 F -- (2002, 2001, 2000, 1998, 1999); Yamaha -- YZ 400 F -- (1998, 1999, 2000, 2001, 2002)