Re: How Important is OMC Ignition Timing?

[archangel]

quote Phil B:

quote legendre:

Are you sure that the magnet is always in the flywheel? On the OMC magneto I know, it’s in the rotor, which is a separate part from the flywheel. While the flywheel must be removed to access the points, the rotor may remain in-place. In fact, it must, as one of the tuning parameters is rotor / coil shoe gap..

I believe that this comment illuminates the heart of the disagreement here. Legendre has taken his knowledge of other motors — specifically motorcycles, if I remember correctly — and attempted to translate the theory directly to outboards via his understanding of his TD-20. The trouble is, the TD-20 does not have the OMC universal magneto that everyone else is talking about. He isn’t aware that the universal magneto is a different configuration than the TD-20 and has wrongly assumed that the TD-20 uses the universal magneto. Another instance of model specifics being as — or more — important than general theory.