Cometic Yamaha FJ1100/FJ1200 79mm .030 MLS Head Gasket — Fits 1984-1993 Yamaha

SKU: CGSC8330
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Cometic Gasket

Cometic Gasket is the world leader in custom multi-layer steel head gaskets for performance and motorsport engines. From off-the-shelf MLS for popular platforms to bespoke gaskets for race-only builds, Cometic seals everything from Honda B-series to LSX.

Premium Engine Sealing for Yamaha FJ Series

Ensure your classic Yamaha FJ1100 or FJ1200 engine runs at its best with the Cometic 79mm .030 MLS Head Gasket. Engineered to provide a superior seal for the iconic FJ engine platform, this multi-layer steel gasket is the gold standard for reliability and performance. Whether you are performing a full restoration or a top-end rebuild, this gasket offers the perfect balance of durability and sealing integrity.

Technical Specifications and Benefits

  • Perfect Fitment: Specifically designed for 79mm bore applications on Yamaha FJ1100 (1984-1985) and FJ1200 (1986-1993) engines.
  • Multi-Layer Steel (MLS): Advanced construction provides excellent resilience against thermal expansion and high combustion pressures.
  • Optimal Thickness: The .030 thickness ensures consistent compression ratios and reliable sealing performance.
  • Heat Resistance: High-quality materials prevent gasket failure under heavy load or high-temperature operation.

The Yamaha FJ series is known for its legendary performance, and maintaining that performance requires high-quality internal components. Cometic gaskets are designed to exceed OEM specifications, providing a secure seal that prevents leaks and maintains compression over the long haul. Don't settle for inferior gaskets when rebuilding your engine; choose the reliability of Cometic. Find all your essential engine components for your next project at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1984-1985 Yamaha FJ1100 Base
1986-1993 Yamaha FJ1200 Base

Product Details

Product Description
Part Numbers
Sizing & Fit

About Cometic Gasket

Cometic Gasket is the world leader in custom multi-layer steel head gaskets for performance and motorsport engines. From off-the-shelf MLS for popular platforms to bespoke gaskets for race-only builds, Cometic seals everything from Honda B-series to LSX.

Premium Engine Sealing for Yamaha FJ Series

Ensure your classic Yamaha FJ1100 or FJ1200 engine runs at its best with the Cometic 79mm .030 MLS Head Gasket. Engineered to provide a superior seal for the iconic FJ engine platform, this multi-layer steel gasket is the gold standard for reliability and performance. Whether you are performing a full restoration or a top-end rebuild, this gasket offers the perfect balance of durability and sealing integrity.

Technical Specifications and Benefits

  • Perfect Fitment: Specifically designed for 79mm bore applications on Yamaha FJ1100 (1984-1985) and FJ1200 (1986-1993) engines.
  • Multi-Layer Steel (MLS): Advanced construction provides excellent resilience against thermal expansion and high combustion pressures.
  • Optimal Thickness: The .030 thickness ensures consistent compression ratios and reliable sealing performance.
  • Heat Resistance: High-quality materials prevent gasket failure under heavy load or high-temperature operation.

The Yamaha FJ series is known for its legendary performance, and maintaining that performance requires high-quality internal components. Cometic gaskets are designed to exceed OEM specifications, providing a secure seal that prevents leaks and maintains compression over the long haul. Don't settle for inferior gaskets when rebuilding your engine; choose the reliability of Cometic. Find all your essential engine components for your next project at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1984-1985 Yamaha FJ1100 Base
1986-1993 Yamaha FJ1200 Base

Product Details

Product Description

About Cometic Gasket

Cometic Gasket is the world leader in custom multi-layer steel head gaskets for performance and motorsport engines. From off-the-shelf MLS for popular platforms to bespoke gaskets for race-only builds, Cometic seals everything from Honda B-series to LSX.

Premium Engine Sealing for Yamaha FJ Series

Ensure your classic Yamaha FJ1100 or FJ1200 engine runs at its best with the Cometic 79mm .030 MLS Head Gasket. Engineered to provide a superior seal for the iconic FJ engine platform, this multi-layer steel gasket is the gold standard for reliability and performance. Whether you are performing a full restoration or a top-end rebuild, this gasket offers the perfect balance of durability and sealing integrity.

Technical Specifications and Benefits

  • Perfect Fitment: Specifically designed for 79mm bore applications on Yamaha FJ1100 (1984-1985) and FJ1200 (1986-1993) engines.
  • Multi-Layer Steel (MLS): Advanced construction provides excellent resilience against thermal expansion and high combustion pressures.
  • Optimal Thickness: The .030 thickness ensures consistent compression ratios and reliable sealing performance.
  • Heat Resistance: High-quality materials prevent gasket failure under heavy load or high-temperature operation.

The Yamaha FJ series is known for its legendary performance, and maintaining that performance requires high-quality internal components. Cometic gaskets are designed to exceed OEM specifications, providing a secure seal that prevents leaks and maintains compression over the long haul. Don't settle for inferior gaskets when rebuilding your engine; choose the reliability of Cometic. Find all your essential engine components for your next project at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1984-1985 Yamaha FJ1100 Base
1986-1993 Yamaha FJ1200 Base

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