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【NGK】Iridium Plug CR9EIX 5448 Review
Iridium Plug CR9EIX 5448 NGK
NGK
Iridium Plug CR9EIX 5448

Fits: SUZUKI DR250R, SUZUKI DR-Z250, PIAGGIO LIBERTY-50, SUZUKI DR350, SUZUKI GSR600, SUZUKI GSX-R250R, SUZUKI GSX-R1000, SUZUKI GSX-R1100W, bimota YB9SR, bimota SB8R SP, bimota YB-7, MALAGUTI MADISON400, KAWASAKI BALIUS, KAWASAKI BALIUSII, KAWASAKI ZEPHYR400 χ, KAWASAKI ZEPHYR1100 RS, KAWASAKI ZEPHYR1100, KAWASAKI XANTHUS, KAWASAKI ELIMINATOR 250V, KAWASAKI ZZ-R600,

Japanese Webike user
5/5

Wonderful

I replaced the Plug for winter maintenance. The results are fantastic! First of all, it does not vary compared to IdlingOEM. The starting performance when cold is improved. The engine used to stall if the Axel was not opened when starting cold engine, but it does not stall. Even when cold in winter, the engine can be started without pulling the chalk. However, I am not sure about the power improvement and rideability, but I am very satisfied with the startability and idling stability. I have been using OEM plugs until now, but Repeat is a sure thing. 12R is fuel condition controlled to eliminate the thumping, but it is thin around the idle rpm, and then it becomes thick.
After replacing the plug, the fuel mixture was thinned slightly, but it is good for city driving.
The high performance plugs are very appreciated since it is a hassle to change plugs for the 12R.

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