Re: How Important is OMC Ignition Timing?

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April 23, 2015 at 11:24 pm #14595
legendre
Participant

    So.. could someone who +does+ own one of these tools be so kind as to apply it to a Johnson TD20 and then take measurements of the actual timing datum – either by means of a degree wheel or a dial indicator-type timing gauge?

    I’d do it myself, but I don’t see any timing marks on the TD20 flywheel.. nor any marks on the magneto plate, for that matter.

    BTW – when using the timing tool, is the magneto set at full advance (fast) or full retard (slow/stop)?