Reply To: Weak spark on 1973 20 Hp Johnson

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November 4, 2020 at 10:19 am #220050
Evinrude 25
Participant

    Hello fleetwin,
    I pull the head back off since people suggested the water getting into the cylinder. Because I reused the old gasket so why not to replace it with the new one and inspect the head and cylinder.
    I have not swap the carb yet since both of the motor has different cam roller (1966 has bigger cam roller), 1973 has a tiny cam follower.