Psychic Intake Valve Kit for Yamaha 2014-2017 YZ450F & 2016-2018 WR450F

Psychic Intake Valve Kit for Yamaha

This intake valve kit by Psychic replaces worn intake valves in Yamaha YZ450F (2014-2017) and WR450F (2016-2018) engines to restore proper sealing and airflow.

Overview

The Psychic Intake Valve Kit is a direct replacement for the factory intake valves in Yamaha’s high-performance four-stroke dirt bikes. Designed for the YZ450F (2014-2017) and WR450F (2016-2018), this kit ensures correct valve geometry and material compatibility for reliable operation.

Built For Performance

• Precision-ground valve stems and faces for consistent sealing
• High-strength steel construction withstands high rpm and heat
• Includes valve guides or seals as needed (check kit contents)
• Drop-in fit reduces installation time and complexity
• Tested for durability in off-road and motocross conditions

Fits These Machines

• for Yamaha YZ450F (2014-2017)
• for Yamaha WR450F (2016-2018)

On-The-Job Use

• Replaces worn intake valves that cause hard starting and power loss
• Ideal for top-end rebuilds and valve adjustment maintenance
• Suitable for both recreational trail riding and competitive racing
• Used by mechanics to refresh cylinder heads between rebuilds

Specs At A Glance

Good To Know

Q: Do I need to replace exhaust valves at the same time? A: It is recommended to replace both intake and exhaust valves when doing a top-end overhaul, but this kit includes only intake valves.

Q: Are valve seals included with this kit? A: This kit typically includes the valves only; you may need to purchase valve seals and guides separately depending on your rebuild.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.