Cometic C3766 MLS Top End Gasket Kit 80mm 2019-2025 Yamaha YZ250F YZ250FX

The Cometic C3766 Top End Gasket Kit is designed to enhance your Yamaha YZ250F, YZ250FX, or WR250F’s engine performance by improving sealing and compression. This high-quality gasket set helps optimize power delivery and engine reliability, making it an essential OEM Replacement or upgrade for serious riders and rebuild projects. Moto-House MX provides this kit to ensure your engine operates smoothly under demanding Racing Performance conditions.

Engineered for a precise fit and long-lasting durability, this Heavy Duty gasket kit features advanced materials for superior performance. The graphite gaskets utilize a steel core laminated with flexible graphite, while the fiber gaskets are designed for maximum seal, flexibility, and torque retention. These components work together to raise compression, leading to better low-end power and increased engine efficiency on the track or trail.

Top Features: Cometic C3766 Top End Gasket Kit

• Enhanced Compression: Optimized design helps raise compression for improved low-end power and throttle response.
• Steel Core Graphite Gaskets: Features a robust steel core laminated with flexible graphite for high-heat resistance.
• Maximum Torque Retention: Fiber gaskets are specifically engineered for flexibility and maintaining a secure seal over time.
• Precision O-Rings: Included O-ring gaskets meet or exceed OEM specifications to prevent leaks and pressure loss.
• Comprehensive Rebuild Set: Includes all necessary gaskets and seals for a complete top-end refresh on 80mm bore Yamaha engines.

Fitment List

Ensure the technical fitment data stays accurate with this clean Markdown table.

Year Range	Vehicle Brand	Vehicle Model & Size
2019-2023	Yamaha	YZ250F
2020-2023	Yamaha	YZ250FX
2020-2023	Yamaha	WR250F

Frequently Asked Questions

Q: Is this gasket kit compatible with my Yamaha YZ250F?
A: Yes, it fits Yamaha YZ250F models from 2019 to 2023, as well as the WR250F and YZ250FX models within the same year ranges.

Q: Does this gasket set improve engine performance?
A: Absolutely. It enhances sealing and compression, which typically leads to better low-end power and overall engine efficiency.

Q: What is the bore size for this specific kit?
A: This kit is designed for the standard 80mm bore size used in these Yamaha 250cc 4-stroke engines.

Upgrade your Yamaha engine today to achieve optimal sealing and performance!

Moto-House MX – Choice of Champions – is located in Clermont/Montverde, FL. The best motocross shop in Central Florida.