ATHENA Cylinder Base Gasket for KAWASAKI KL 250, KLR 250 1985-2003

ATHENA offers this cylinder base gasket for KAWASAKI KL 250, KLR 250 1985-2003. The base gasket sits under the cylinder, on the crankcase. Crushed when tightened, it cannot be reused: replace it every time the cylinder comes off.

Why does the thickness matter?

The benefits:

• The OE thickness keeps the cylinder height intended by the manufacturer.
• Another thickness lets you correct piston-to-head clearance after machining or adjust the port timing of a 2-stroke.
• A new gasket keeps the bottom end sealed against oil and gases.

Why choose ATHENA?

Athena, founded in 1973 by Giovanni Mancassola near Vicenza and based in Alonte (Italy), designs gaskets, pistons and cylinder kits; it supplies original equipment to manufacturers such as KTM, Ducati, Fantic and Triumph.

When should you replace the base gasket on your KAWASAKI KL 250?

Every time the cylinder comes off: piston change, top-end rebuild or cylinder inspection. Oil or mixture seeping at the base of the cylinder also points to a tired gasket.

No manufacturer figure in hours for this model. Cross-Mania guideline: compression check every 20 h of hard use and every 40 h of leisure riding.

Specifications and fitting tips

• Thickness : OE
• Manufacturer part number: S410250006040

Cross-Mania tip: Choose the OE thickness if the cylinder and head have not been machined; if in doubt, measure the squish with solder wire before final assembly.

Spare parts and items to plan

• Top-end gasket kit : ATHENA S410250001066 · ATHENA S410250015025
• Piston : see the selection
• Piston rings : see the selection
• Coolant : LIQUI MOLY 1 L · TWIN AIR

Compatibility

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

Fits:
KAWASAKI KL 250 2003
KAWASAKI KL 250 2002
KAWASAKI KL 250 2001
KAWASAKI KL 250 2000
KAWASAKI KL 250 1999
KAWASAKI KL 250 1998
KAWASAKI KL 250 1997
KAWASAKI KL 250 1996
KAWASAKI KL 250 1995
KAWASAKI KL 250 1994
KAWASAKI KL 250 1993
KAWASAKI KL 250 1992
KAWASAKI KL 250 1991
KAWASAKI KL 250 1990
KAWASAKI KL 250 1989
KAWASAKI KL 250 1988
KAWASAKI KL 250 1987
KAWASAKI KL 250 1986
KAWASAKI KL 250 1985
KAWASAKI KLR 250 1996
KAWASAKI KLR 250 1995
KAWASAKI KLR 250 1994
KAWASAKI KLR 250 1993
KAWASAKI KLR 250 1992
KAWASAKI KLR 250 1991
KAWASAKI KLR 250 1990
KAWASAKI KLR 250 1989
KAWASAKI KLR 250 1988
KAWASAKI KLR 250 1987
KAWASAKI KLR 250 1986
KAWASAKI KLR 250 1985