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What's the sparkplug alternative for cbr250r ?


I was thinking Denso IU24 because of the same size and heat range. But i see that the base tip (the white thingy where the needle reside) on stock plug (NGK SIMR8A9) is more protrude than IU24. So i am in doubt.


Is there any true alternative in term of heat range, size, and especially the base tip have the same protrude ?
 

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IU 24 not protruding. While the stock plug (NGK SIMR8A9) insulator is protruding. WIll this affect bike performance and reliability overall ?
 

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I went to Densos North American site for their catalog... And didn’t see a listing for the CBR250R .. Only for the CRF250X... That bike calls for the IUH24 ... Idk if it’ll work on the CBR 🤷‍♂️ ???... I’d have ta do some more research on that !!!..
Why are you looking for an alternative spark plug cibaru ?...
 
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