Reply To: 1972 25 HP Johnson Outboard

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December 7, 2020 at 12:58 pm #224499
Mumbles
Participant

    So is it a 25 horse motor? They have different cranks and pistons than the 18 – 20 horse motors. Easiest way to tell them apart without measuring the pistons is to look at the crank. A 25 crank will have steel counterweights attached to it while the 18 and 20 horse cranks wont.