NGK Iridium Spark Plug - CR7HIX

The NGK Iridium IX CR7HIX (7544) is a high-performance, short-reach spark plug specifically designed for small-displacement engines. It is the premium iridium upgrade for the standard C7HSA or CR7HSA plugs, offering superior ignitability and a significantly longer service life.

Key Performance Benefits

• Precision Ignition: The 0.6mm laser-welded iridium tip focuses electrical energy, requiring lower voltage to create a spark. This results in quicker cold starts and a more stable idle.

   

• Enhanced Acceleration: Its tapered-cut ground electrode reduces the "quenching" effect, allowing the flame to spread more effectively for crisper throttle response.

   

• Superior Anti-Fouling: A specialized thermo-edge design helps the insulator reach self-cleaning temperatures quickly, preventing carbon buildup during low-speed city riding.

• Durability: Iridium is roughly six times harder than platinum, ensuring the spark gap remains precise for a much longer interval than standard copper or nickel plugs.

   

Technical Specifications

Popular Fitment & Compatibility

The NGK CR7HIX is a versatile performance upgrade for various motorcycles, scooters, and small engines:

• Yamaha: TTR 125, YB 125cc, and Ray/Ray-Z (older models).

   

• Honda: CRF100F, XR100, and various 50cc-100cc Super Cub models.

   

• Kawasaki: KLX 125 and KLX 140 models.

   

• Scooters & ATVs: Compatible with various GY6-style 50cc-150cc engines and Arctic Cat 50/90cc ATVs.

   

CR7HIX vs. CR6HIX

If you are deciding between these two heat ranges:

• Choose CR7HIX: If you do a mix of city and highway riding. It is a slightly "colder" plug than the 6, making it safer for sustained higher speeds.

• Choose CR6HIX: If your bike is used strictly for short-distance city commuting or if you notice your current plugs are frequently covered in black carbon soot.