Cometic C8811 Multi-Layer Steel Head Gasket for Yamaha TX/XS 650 1974-82

The Cometic C8811 is a precision-engineered multi-layer steel (MLS) head gasket designed specifically for Yamaha TX and XS 650 motorcycles manufactured between 1974 and 1982. This high-performance gasket features a 77mm bore diameter and 0.045-inch thickness, providing an optimal seal for your classic Yamaha parallel twin engine.

Key Features:

• Multi-layer steel construction for superior sealing and durability
• 77mm bore diameter designed for stock and mild performance applications
• 0.045-inch (1.14mm) compressed thickness for precise compression ratio control
• Advanced coating technology prevents corrosion and improves torque retention
• Embossed stainless steel layers with elastomeric coatings conform to cylinder head and block surfaces
• Eliminates the need for additional sealants
• Exceeds OEM specifications for reliability and longevity

Cometic MLS gaskets are engineered to withstand extreme cylinder pressures and temperatures, making them ideal for both stock rebuilds and performance applications. The multi-layer design allows for minor surface imperfections while maintaining an excellent seal, and the gasket's ability to rebound helps maintain consistent clamping force throughout the engine's thermal cycles.