ATHENA Cylinder Base Gasket for KAWASAKI KX 500 1989-2004

On KAWASAKI KX 500 from 1989 to 2004, the ATHENA S410250006031 cylinder base gasket fits in place of the original part. Fitted under the cylinder, the base gasket is more than just a seal: its thickness sets the height of the cylinder, and with it the engine's squish and compression.

Key features

• Several thicknesses available for the same bike.
• The right tool for setting squish, compression and timing, according to Athena.

Specifications

• Brand: ATHENA
• Manufacturer part number: S410250006031
• EAN code: 8051757027415
• Thickness: OE
• Weight: 50 g
• Engine: 2-stroke

When to replace it?

• Oil or coolant seeping at the base of the cylinder.
• Gasket crushed or torn on removal.

Every time the cylinder is removed: a crushed base gasket can't be reused.

Fitting tips

1. Clean the crankcase face and the base of the cylinder without scratching them.
2. Fit the gasket dry, centred on the studs.
3. Tighten the cylinder in a criss-cross pattern to the manufacturer's torque.
4. If you have changed the thickness, measure the squish before refitting the cylinder head with a new head gasket.

Why ATHENA?

Founded in 1973 near Vicenza, Athena is an Italian engine gasket specialist that has made its gaskets on its own production lines since day one, as well as a renowned manufacturer of pistons and cylinder kits. The brand supplies original equipment to manufacturers such as KTM, Ducati, Fantic, Piaggio and Triumph, and is a partner of the MXGP motocross world championship.

Spare parts and items to plan

• Top-end gasket kit : ATHENA · CENTAURO
• Piston : WOSSNER · WISECO
• Piston rings : WISECO · WOSSNER
• Coolant : LIQUI MOLY 1 L · TWIN AIR

Frequently asked questions

Which thickness should I choose?
The same as your original gasket, unless you are deliberately adjusting the squish.

Should the other gaskets be replaced?
Yes, as soon as the cylinder is removed: a top end gasket kit includes all the gaskets that need replacing.

Compatibility

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

Fits:
KAWASAKI KX 500 2004
KAWASAKI KX 500 2003
KAWASAKI KX 500 2002
KAWASAKI KX 500 2001
KAWASAKI KX 500 2000
KAWASAKI KX 500 1999
KAWASAKI KX 500 1998
KAWASAKI KX 500 1997
KAWASAKI KX 500 1996
KAWASAKI KX 500 1995
KAWASAKI KX 500 1994
KAWASAKI KX 500 1993
KAWASAKI KX 500 1992
KAWASAKI KX 500 1991
KAWASAKI KX 500 1990
KAWASAKI KX 500 1989