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PROX offers this valve spring kit exhaust for KAWASAKI KFX 450 R 2X4, KX 450 F from 2006 to 2014. The camshaft opens the valves and the springs close them. At high revs the spring must bring the valve back very quickly: if it is tired, the valve can no longer keep up and “floats”.
The benefits:
ProX, the Dutch engine-parts specialist since 1975, has its parts made in factories that also supply the manufacturers: OEM quality at a more affordable price.
Hard hot starting, valve clearance that keeps closing up or a noisy timing chain: the valve train is wearing.
Cross-Mania tip: Check the guides and seats before reassembly and lap the valves in. Titanium valves must not be fitted on worn seats.
Check the exact model and year of your bike in the list below before ordering.
Fits:
KAWASAKI KFX 450 R 2X4 2014
KAWASAKI KFX 450 R 2X4 2013
KAWASAKI KFX 450 R 2X4 2012
KAWASAKI KFX 450 R 2X4 2011
KAWASAKI KFX 450 R 2X4 2010
KAWASAKI KFX 450 R 2X4 2009
KAWASAKI KFX 450 R 2X4 2008
KAWASAKI KX 450 F 2008
KAWASAKI KX 450 F 2007
KAWASAKI KX 450 F 2006
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