Yamaha TW200, XT225 & More Psychic Exhaust Valve Kit

KIT FEATURES:

• All kits sold with valve, spring, retainer, seat to do complete replacement of either intake or exhaust side

• All components are manufactured under ISO 9001 certified factories

• Nitride coated components to improve heat transer and carbon buildup for increased valve train life

VALVE FEATURES:

• Forged one-piece construction to help with weight reduction and improved flow

• Performance valves receive a swirl polish, smooth stem treatment, and are made of 21-2n/suh35ht stainless steel

SPRING FEATURES:

• Springs are made of swosc-v material (oil-tempered steel wire)

• Some springs fearture a progressive style design with more coils on one end of the spring

• Progressive springs are heavier on one end and should always be installed towards the bottom

• Non-progressive springs are paint marked and should be installed towards the top

SEATS:

• Made from 4041 steel (select applications use 707546 aluminum)

• Designed to work with psychic stainless steel valves and springs

Part Number: XU-09518EK