Reply To: Weak spark on 1973 20 Hp Johnson

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October 31, 2020 at 12:57 pm #219777
cajuncook1
Participant

    Put it in neutral and remove your manual pull starter assembly. Look for anything rubbing around the flywheel as you are turning it.

    You can do a much better job of torquing the cylinder head if you remove the power head from the base.