VERTEX Titanium Intake Valve for KAWASAKI KXF 250 and SUZUKI RMZ 250 2004-2008

VERTEX offers this intake valve for KAWASAKI KXF 250 and SUZUKI RMZ 250 2004-2008. A four-stroke engine breathes through its valves. The intake valves open to let the air-fuel mixture into the cylinder, then close perfectly tight during combustion.

Titanium, steel or stainless valve?

This valve is titanium.

• Titanium: about 40 % lighter than steel, it lets the engine rev high without valve float; standard on most modern 4-stroke motocross bikes. On the downside, it costs more and its coating wears faster if seats and guides are tired.
• Steel or stainless: heavier but very wear-resistant and cheaper; as a titanium replacement it lasts longer, with springs suited to its weight.
• Tip: replace valves as a set, have the seats checked and fit new valve stem seals.

Why choose VERTEX?

Vertex has manufactured in Italy since 1953 and has supplied KTM’s original pistons since 1996 (KTM, Husqvarna, GASGAS), with ISO 9001-certified production.

When should you replace the valves?

Hard hot starting, valve clearance that keeps closing up or a noisy timing chain: the valve train is wearing.

Specifications and fitting tips

• Material: Titanium
• High thermal resistance
• Benchmark in longevity
• Manufacturer part number: 8400011-2

Cross-Mania tip: Check the guides and seats before reassembly and lap the valves in. Titanium valves must not be fitted on worn seats.

Also needed with this part

• Valve stem seals : ATHENA · PROX
• Valve shims : PROX 29.VSA748 · PROX 29.748
• Top-end gasket kit : COMETIC C3408-EST · COMETIC C3409-EST
• 4-stroke engine oil : LIQUI MOLY 10W40 1 L · MOTUL 10W50

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
KAWASAKI KXF 250 2008
KAWASAKI KXF 250 2007
KAWASAKI KXF 250 2006
KAWASAKI KXF 250 2005
KAWASAKI KXF 250 2004
SUZUKI RMZ 250 2006
SUZUKI RMZ 250 2005
SUZUKI RMZ 250 2004