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  1. Cbr250rr dyno run

    CBR250 Forum
    Me new to the forum got my bike dynoed this week I thought I got pretty good numbers just got new jets uni filter and cheapo exhaust Cbr250rr mc22 1991 I think they had 45hp at the crank
  2. CBR250rr Not running smooth, think needs a tune

    CBR250 Forum
    So I've got my cbr250rr up and running after a year of not running. I can start the bike but it is sometime a little bit tricky to start but nothing too bad. the problem is that even once the engine is warm, i cannot heavily rev the bike without it stalling, if I simply open the throttle...