Quote:
Originally Posted by "QUICK-SILVER"
First I'd try richening up the idle mix a hair.
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Have you tried opening up (backing out) the idle mixture screw yet?
This flathead isn't like overhead valve engines. Intake tract turns up in the block to get to the combustion chamber. Idle mix adjusted for highest speed and highest vacuum will be too lean for cranking without pumping the gas pedal.
Try backing it out till idle starts to slow down but not to the point of puffing black smoke.
Clay