[Rob Doe]

I had a 'start and run for a few seconds' problem too. I had cleaned the passages thoroughly, measured and cleared the jets and reinstalled themwith little red gaskets. I eventually discovered that the main and/or cap jets were leaking at their base. I had to switch to Bratton's carb kit to get the little black washers. The leaking stopped.


When the car has set for several hours, it should be dry in the intake/air horn at the base of the two jets in the venturi. (main and cap) Stick your middle finger in there and feel for gas at the base of the jets. I could stick a dry finger in and touch only the upper part of the jets and they were dry at the top. I split the carb again and set the bottom on the bench and filled it with fuel. The jets were leaking at their base.