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  1. CB350 Missing/Sputter at 6,000 & up RPM's

    Engine Discussion
    I have a frustrating issue with my 1970 CB350. Runs excellent up to 6,000 RPM's above there starts sputtering and missing, hope there is something I am overlooking because I feel I have been all around this issue. Top end just rebuilt ( New pistons, rings ) Valves ground New XS Coils and wires...