Reply To: 1975 Johnson 15R75C 15 hp

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August 29, 2025 at 8:56 pm #299421
Buccaneer
Participant

    US Member

    Perhaps the powerhead was replaced with an older version without
    a thermostat. Not sure if the core plug on these were stamped with
    the model number? Anyway, not my motor, so I won’t worry about it.

    Prepare to be boarded!