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QuadBoss Suzuki LT-F250/LT-Z250 / Yamaha YFM250/400/660/YXR660 Air Cut-Off Valve Kit

QuadBoss · New

QuadBoss Suzuki LT-F250/LT-Z250 / Yamaha YFM250/400/660/YXR660 Air Cut-Off Valve Kit

MPN 420584 · Store SKU qbs420584

$29.28
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Supplier stock checked 11/7/2026, 9:03:37 AM UTC. Adding a part does not reserve it.

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Product details

Improperly 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. QuadBoss 420584 Carburetor Air Cut-Off Valve Kit

Manufacturer fitment & guides

Check 420584 against the manufacturer’s application information below.

A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.

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