ATHENA Cylinder Base Gasket for YAMAHA DT 80, YZ 60 1981-1993

ATHENA offers this cylinder base gasket for YAMAHA DT 80, YZ 60 1981-1993. 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 YAMAHA DT 80?

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 15 h of hard use and every 30 h of leisure riding.

Specifications and fitting tips

• Thickness : OE
• Manufacturer part number: S410485006021

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 : CENTAURO · ATHENA
• 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:
YAMAHA DT 80 1993
YAMAHA DT 80 1992
YAMAHA DT 80 1991
YAMAHA DT 80 1990
YAMAHA DT 80 1989
YAMAHA DT 80 1988
YAMAHA DT 80 1987
YAMAHA DT 80 1986
YAMAHA YZ 60 1983
YAMAHA YZ 60 1982
YAMAHA YZ 60 1981