ATHENA Cylinder Head Gasket for YAMAHA DT 125, YZ 125 1974-1977

ATHENA offers this cylinder head gasket for YAMAHA DT 125, YZ 125 1974-1977. The head gasket takes the pressure and heat of every combustion. It is crushed when the head is torqued down and must be replaced every time the head comes off.

Why replace this gasket every time it is removed?

The benefits:

• A new gasket guarantees a perfectly sealed joint.
• Material designed to withstand heat, oil and coolant.
• An inexpensive part that saves doing the job twice.

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 head gasket on your YAMAHA DT 125?

Loss of compression, a dropping coolant level, bubbles in the radiator or traces between cylinder and head: the gasket needs changing. It is also replaced every time the head comes off.

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: S410485001100

Spare parts and items to plan

• Top-end gasket kit : ATHENA · ATHENA 150
• Piston : ATHENA S4C05800003 · ATHENA S4C04450001
• Coolant : LIQUI MOLY 1 L · TWIN AIR
• Spark plug : NGK 3530 · NGK 3230

Compatibility

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

Fits:
YAMAHA DT 125 1977
YAMAHA DT 125 1976
YAMAHA DT 125 1975
YAMAHA DT 125 1974
YAMAHA YZ 125 1975
YAMAHA YZ 125 1974