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cr 85 fouling plugs

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My sons 05 cr85 is fouling lots of plugs it is a new bike for him so he spends a lot of time in the lower rpms. Is a smaller pilot and dropping the needle one clip enough??? thanks for you thoughts. Jerry.

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Thanks for all the feedback yes I am running the 9es and yes the bike came with a neddle and a new jetting chart.I guess I need to put that in. I would like that # if you have it. I am at sealevel to 500 ft max. Thanks again for all the help. Jerry

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get 2 or 3 of those iridium plugs, those are the best for beginning riders on 2 strokes and will last much longer

proper jetting for for elevaton will help lots too

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