NGK 6263 CR9E Standard Resistor Spark Plug — Suzuki Hayabusa GSX-R / Yamaha WR250F YZF

NGK Spark Plugs — World Leader in Ignition Technology, Superior Heat Dissipation, and Reliable Performance

When it comes to high-performance ignition, the NGK 6263 (CR9E) Spark Plug is the professional choice for off-road, street, and snow applications. Engineered to meet the demanding requirements of high-revving engines, this standard resistor plug features a copper core that deeply penetrates the center electrode. This design aids in rapid heat removal, preventing engine-damaging pre-ignition while ensuring a consistent spark under heavy loads.

Constructed with a pure alumina silicate ceramic insulator, the CR9E provides superior dielectric strength and enhanced heat transfer. To combat the harsh environments of powersports, NGK utilizes a trivalent metal plating that offers elite anti-corrosion and anti-seizing properties—eliminating the need for anti-seize during installation on most cylinder heads. With triple seals to prevent combustion gas leakage and corrugated ribs to stop electrical flashover, this plug ensures your machine starts easily and runs smoothly.

• Copper core center electrode provides maximum heat conductivity for cooler operation.
• Trivalent metal plating ensures superior resistance to corrosion and moisture.
• Alumina silicate ceramic insulator offers high mechanical strength and thermal stability.
• Resistor-type design (5k Ohms) reduces electromagnetic interference with onboard electronics.
• Triple-sealed interior prevents compression leakage and maintains cylinder pressure.

Moto-House MX Pro Tip:

Spark plugs are the "window" into your engine's health. For high-performance machines like the Hayabusa, GSX-R, or WR250F, we recommend checking your spark gap before installation. While these come pre-set at 0.8mm (0.031"), always verify the gap with a wire-style feeler gauge to ensure perfect ignition timing. Changing your plugs seasonally is the simplest way to maintain peak horsepower and ensure crisp throttle response during those cold morning starts.

Year	Make	Popular Model Fitment
1999-2007	Suzuki	GSX1300R Hayabusa
1996-2007	Suzuki	GSX-R600 / GSX-R750 / GSX-R1000
2008-2009	Yamaha	WR250F / TT-R250
2015-2019	Arctic Cat / Yamaha	7000 Series Snowmobile / SR Viper

FAQ Questions

Q) Does this spark plug come pre-gapped?
A) Yes, it is set to 0.8mm (0.031") from the factory. However, it is always best practice to double-check the gap for your specific engine's service manual specs.

Q) What does the "R" in CR9E stand for?
A) The "R" indicates it is a resistor-type plug, which helps prevent electrical noise from interfering with your bike's GPS, dash, or radio equipment.

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