The Cometic MLS head gasket for Yamaha TX and XS 650 (1974–1982) fits a 79mm bore at .045" thickness and is intended for reliable top-end sealing. Multi-layer steel construction combines embossed AMP-coated outer layers with an uncoated stainless center shim to tolerate harsh sealing environments and surface finishes. The shim option allows tailored thickness, reduces required clamp load and limits bore distortion while spreading load across the sealing area.
Cometic 74-82 Yamaha TX 79mm Bore .045 MLS Head Gasket