1963 Mercury 650S won't idle

junk

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Jun 16, 2009
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A friend of my mother just gave me a boat with a 1963 Mercury 650S hanging off the back. After recharging the battery, I decided to see if I could get her to start. Pump the gas ball, flip the fast idle lever, crank and viola! I let her sit for a while, on a fast idle, and then try to kick it down to regular idle speed... sputter, sputter, die.

Mind you, the boat's probably been sitting for about 2 years. The gas could be bad or the mixture could have been wrong, to begin with. I'm thinking about doing a carb cleaning, tomorrow and I'll take a glance at the plugs.

Any other suggestions on where to look first? I don't (yet) have a service manual, so I'll be going about this (for now) with the knowledge I've picked up from carbureted cars and bikes, which will probably only get me a little ways.
 
Joined
Sep 5, 2007
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Re: 1963 Mercury 650S won't idle

An old mercury mechanic told me that alot of times when they wont idle its because the little brass tube thats in front of the carb throat is clogged. Even cleaning the carb and putting in a kit wont fix it untill you clean this tube out using a small wire. Hope this helps.
 
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