Reply To: 1969 4hp Folding Johnson Outboard not circulating

[JACQUES]

Any chance this engine would benefit from a good flush with some flushing agent to react to cruddy deposits ? …. even plain / hot vinegar could soften up deposits after a few hours .

Stronger commercial flushing agents are also shown on Utubes to clear up internal “inaccessible” cavities of hot running engines .

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