Question about 1990 Honda CBR 250 RR

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Screaming sound i ride my bike on monday and suddently over 6000rpm the bike starts to scream, and its loud. if was fine this weekend, any idea of what could be the prob?

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  • n_vstaden Jan 20, 2009

    the bike got new bearings, big ends and mains, new rings and the valves was reset and reshimed, the one outlet cam that was snaped from the previous owner was also replaced in november. i have driven 570km, changed the oil at 500km. it was fine like it used to be, more revs more sound but it screams louder then usual at 6000rpm, and now theres a grinding kinda sound with it that sounds to me its coming from the engine.



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Its quite normal for these bikes to scream at high revs its what they do at the high revs though it becomes more apparent with engine age and thrashing into the high revs maybe a good service is due hope this helps

Posted on Jan 19, 2009


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