Quadboss 420584 QBS Cut-Off Valve Kits engine-gaskets-seals-oil-pump-seals 12 point head bolts on

12 point head bolts on Evo

2018-2021 Yamaha WR450F

remove the staples holding on your old cover

with improved dry and wet grip to make it even more user-friendly

with optional drilled rotor kits available to further reduce driveline weight in classes where every weight advantage is necessary

Quadboss 420584 QBS Cut-Off Valve Kits engine-gaskets-seals-oil-pump-seals 12 point head bolts onImproperly functioning air cut off valves can stick open or closed, causing poor running conditions and popping during deceleration. Air Cut Off Valve Kit includes O rings, diaphragm, spring and screws necessary to rebuild the air cut off valve circuit.