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    78 Mercury 402 timing adjust

    Hi I'm new here and I was hoping someone knows how to properly set the timing on a 78 402 Mercury 2 cyl. I discovered a Killswitch wire voltage so disconnected it and go it fired up finally. Then started advancing the timing which was off till the Mark lined up and it's still idling at 1800...
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    78 merc 402 won't idle down and high voltage stator

    Got a 78 Mercury 402 40 hp 150 compression on both cylinders, new fuel pump, rebuilt carb, water pump, stator, and now switchbox. Ran good a week ago but was hard to start and died several times. Now ran for a minute then died not to start again. Checked tdc and Mark lined up, voltage was high...
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