Re: 1952 Johnson Seahorse RD12 25 HP – Removing Flywheel and Source for Ignition Parts Home › Forum › Ask A Member › 1952 Johnson Seahorse RD12 25 HP – Removing Flywheel and Source for Ignition Parts › Re: 1952 Johnson Seahorse RD12 25 HP – Removing Flywheel and Source for Ignition Parts The Boat HouseReplies: 4549Topics: 111 August 13, 2018 at 1:41 pm #81072 .