1. Octane Requirements

    Does anyone know of a chart that states octane requirements for older Honda bikes? I have a 72 CB 175 K6 and getting carbon on the plugs. I have looked in the Honda Service Manual and did not find any notation of octane, online was not much help either, besides one notation that Honda predicted...
  2. Compression CM400

    I've just gotten a compression tester and tested compression on both cylinders on my '80 CM400T. Bike hasn't run in 18 or so years. I have not yet adjusted the valves, either. Readings are cold. Lt cylinder 158 psi Rt cylinder 149 psi Am I looking ok here? I know these are below spec (185...
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