NGK 7544 CR7HIX IX Iridium Spark Plug: Perfect Fit for Bombardier DS90 2002 - Single Piece Review

Installed this iridium plug and was surprised to see a noticeable improvement. No, it didn't give me more power or make me go faster than it was, it bought fuller fuel combustion with that high spark intensity that allowed the car to run smoother.

Looks like a great spark plug. Used on the 1992 Yamaha Breeze (YFA-1). He sat about three years after he became too small for my boy. We cleaned the carburetor, flushed the fuel lines, changed the oil, put in a new spark plug and it fired right away. Now the four-wheeler is moving to my ten-year-old daughter.

GY6 Scooter requires this connector. Check electrode. This is a GY6 connector designed to work. Welcome to the ignition. Forever. These things are hard to fill with air. The candle ignites the fuel better than any other design. More reliability. Cold start is easier. Save the starter and battery for a hot start.

Recommend this to others. You'll work consistently for many seasons if you service your engine like I do. The first thing I did when my scooter was new was change the stock oil to 10/40 after a break-in period and replace the stock spark plugs with these. The break time in my case was 8 seasons ago. Accurate break, positive constant spark year after year.

What is the difference in how it gives spark to the engine? You can actually hear it working differently, but it has great resonance. I chose Iridium because I set the distance to full throttle on a scooter. Although copper is the best conductor, it doesn't have the same durability as iridium.