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strange exhaust sound

  1. Loss of power, strange sounding exhaust

    CBR250 Forum
    Hey guys, this is my first post here. i thought i might as well sign up to learn more about my recently acquired cbr250rr. Anyhow, since I got it, it was running fine, however after getting home one weekend away I hopped on my bike only to find that it was sounding like a lawnmower (modern...