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The Cometic MLS head gasket for Yamaha TX and XS 650 models (1974–1982) fits a 77mm bore at .045" thickness and provides a durable sealing solution for top-end rebuilds. MLS construction uses multiple embossed layers with AMP coating and an uncoated stainless shim to handle varied surface finishes. That center shim lets Cometic control thickness while requiring less clamp load, reducing bore distortion and improving load distribution across the sealing surface.
Cometic 74-82 Yamaha TX 77mm Bore .045 MLS Head Gasket
