NGK 95627 LMAR8G Standard Spark Plug 2014-2018 Yamaha YZ250F YZ250FX WR250F

Stop settling for weak ignition and inconsistent starts. The NGK Standard Series Spark Plug LMAR8G (95627) is the definitive OEM Replacement for riders who demand the same reliability as the world’s winning racers. A hotter spark ensures more complete combustion, leading to crisper throttle response and improved overall engine performance. At Moto-House MX, we know that a fouled plug can ruin a race day, which is why we only stock the industry standard for your Yamaha four-stroke.

Engineered for maximum durability, these plugs feature trivalent metal plating for superior anti-corrosion and anti-seizing properties—critical for the high-heat environment of a modern 250cc racing engine. The pure alumina silicate ceramic insulator provides incredible strength and heat transfer, while the copper core and triple seals prevent internal leakage and flashover. Whether you are hitting the track or the trails, this plug is designed to outlast and outperform basic stock alternatives.

Top Features: NGK LMAR8G Spark Plug

• Superior Anti-Corrosion: Trivalent metal plating prevents seizing in the cylinder head.
• Advanced Heat Transfer: Pure alumina silicate ceramic insulator provides superior strength.
• Leak-Proof Design: Triple seals prevent combustion gases from escaping the housing.
• Copper Core Technology: Deep-seated copper core aids in rapid heat removal to prevent overheating.
• Optimized Combustion: Designed for a hotter spark to produce better power and fewer emissions.

Fitment List

Year Range	Vehicle Brand	Vehicle Model & Size
2014 - 2018	Yamaha	YZ250F
2015 - 2018	Yamaha	YZ250FX
2015 - 2018	Yamaha	WR250F

Frequently Asked Questions

Is this a direct OEM replacement for my Yamaha?
Yes, the NGK LMAR8G is the standard replacement part designed to meet or exceed the original factory specifications for the YZ250F, YZ250FX, and WR250F series.

Do these spark plugs come pre-gapped?
While most NGK plugs are pre-gapped, we always recommend checking your specific engine’s service manual and verifying the gap before installation to ensure peak performance.

How often should I replace my motocross spark plug?
For high-performance racing applications, we recommend inspecting your plug every 5-10 hours of ride time. Replacing it regularly ensures reliable starting and prevents power loss.

Upgrade Your Ride and keep your engine firing perfectly every time you kick it over.

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