Wössner Exhaust Valve Steel for KAWASAKI KXF 250 and SUZUKI RMZ 250 2004-2006

WOSSNER offers this intake valve for KAWASAKI KXF 250 and SUZUKI RMZ 250 2004-2006. 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 steel.

• 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 WOSSNER?

Wössner, the German company founded by a former racer, forges its own parts: design and manufacturing are controlled end to end.

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

• Manufacturer part number: VKS4002A-INT

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 C3406-EST · COMETIC C3407-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 2006
KAWASAKI KXF 250 2005
KAWASAKI KXF 250 2004
SUZUKI RMZ 250 2006
SUZUKI RMZ 250 2005
SUZUKI RMZ 250 2004