Description
Kibblewhite - 09262678 - Valve and Spring Kit - 0.425" Lift - Yamaha YZ250F '14-'18
Features
- Extends the life of the valvetrain and intake components by as much as 4x over the OEM titanium parts
- Includes forged one-piece stainless steel intake valves, wound chrome-silicon heat-treated wire valve springs, ultra-light titanium retainers and hardened steel bases
- Components are created using Finite Element Analysis (F.E.A.) software, as well as proprietary camshaft analysis and spring design software
- Specifically designed and engineered for each application
- Made in the USA
Specs
| Application | Intake |
| Head Diameter Imperial | 1.220'' |
| Spring Lift Imperial | 0.425'' |
| Spring Seat Pressure | 55 lb |
| Material | Tensilite®Titanium |
| Stem Diameter Imperial | 0.1962'' |
| Stem Diameter Metric | 5.00 mm |
| Type | Conversion |
| Tulip Angle Imperial | 18° |
| Length Imperial | 3.280'' |
| Spring Lift | 0,425'' |
| Valve Seat Height Imperial | 1.150'' |
| Collar Material | Titanium |
| Spring Open Pressure | 151 lb |
| Head Diameter Metric | 31.00 mm |
| Product Name | Valve and Spring Kit |
| Units | Kit |
| Riding Style | Off-Road |
Fitment
| 2014-2018 | Yamaha | YZ250F |
