What? It sits neglected for most of the year and hasn’t been serviced for thirty years but is still expected to run like Jack The Bear on demand? Come on, it’s time to spend some coin on that ’59 Johnson so it will run reliably again for another 57 years!
Coils, points, condensers, spark plugs and possibly new plug wires should do the ignition while a carb kit including the float will help it breathe properly and a new water pump kit or impeller will help to keep it cool. Don’t forget to replace the thermostat! Fresh gear oil and a new drive pin for the prop should put it back in prime condition after synchronising the carb and timing. Greasing the swivel tube and lubricating all of the friction areas and linkage points will help to.
While you have the tools out, you might want to check out the gas tank for any rust or crud in it. Also check the dual fuel/air line for any cracks, deterioration or loose connections or bad O rings in the connector.
There’s something I like about ’59 Johnsons with the fiberglass hood. Here’s a ten horse I have squirreled away somewhere! 😀
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