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06 CRF450 plug

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Hi guys,

Just stripped my 06 CRf450,ready for a valve check,and the plug is a pretty light grey color,the bike is on stock jetting for the UK,and I havent adjusted anything on the carb,the only thing I have done is removed the backfire screen from the airfilter.

Also in the pic I have atatched,notice all the dirt around the threads?their's also dirt on the plug lead?I have no idea how it got down their...

anyways I just wanted to make sure the bike isnt running to lean,I did notice the bike popped a few times yesterday when getting on the gas after landing a jump,the bike is always run on Shell Optimax which is 98 Octane,

Thanks for the help

crf450plug.jpg

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