My 94 CBR F2 has just started acting up - 40 000km- service history before 35 000km a bit of a mystery.
Just wondering if anyone has ever experienced a sudden flat spot developing around 10250 - 11 grand. Engine doesn't sound quite right in that range like its not breathing right and struggles to push past 11 grand. It does rev to redline once it gets past the major hic-up. This problem just appeared out of thin air - it used rev super freely.
I'm thinking valve issue
thanks for your time