ATHENA Cylinder Head Gasket for MAICO 400, RADIALE 400 1974-1981

On MAICO 400, RADIALE 400 from 1974 to 1981, the ATHENA S410320001005 head gasket fits in place of the original part. Between the cylinder head and the cylinder, the head gasket contains the pressure of every explosion. Once tightened, it takes the shape of the parts: on reassembly you need a new gasket to keep full compression.

Specifications

• Brand: ATHENA
• Manufacturer part number: S410320001005
• EAN code: 8051757221929
• Thickness: OE
• Weight: 50 g
• Engine: 2-stroke

When to replace it?

• Loss of compression, less lively engine.
• Black marks or hissing at the head/cylinder joint.
• Coolant level dropping, bubbles in the radiator.

Every time the cylinder head is removed, and therefore at every piston change.

Fitting tips

1. Clean the cylinder head and cylinder faces without scratching them.
2. Fit the gasket dry, the right way round, centred on the studs and the coolant holes.
3. No sealant on the gasket.
4. Tighten the cylinder head in a criss-cross pattern, in several stages, to the manufacturer's torque.
5. Refill the coolant and take the opportunity to replace the spark plug.

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

• Coolant : LIQUI MOLY 1 L · TWIN AIR

Frequently asked questions

Is the gasket enough to refit the cylinder head?
It replaces the head gasket only. If you also remove the cylinder, go for a complete top end gasket kit instead.

Compatibility

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

Fits:
MAICO 400 1981
MAICO 400 1978
MAICO 400 1974
MAICO RADIALE 400 1974