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Old 01-21-2008, 05:07 PM
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terry251 terry251 is offline
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Join Date: Apr 2004
Location: Frederick, CO
Cobra Make, Engine: SPF Roadster, 418W
Posts: 385
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Dan, it's colder than 14 degrees here in Colorado today (again!) but my best efforts to fire up my SPF (418W, Demon carb, no choke) usually involve pumping the living day lights out of the throttle. Since there isn't a choke to provide a rich mixture, you have to do the deed with the foot feed. I pump mine 4-5 times or so, after the fuel pump has run for about a minute. Then, I use my highly calibrated ear and butt to either pump more or less as it tries to fire. Keeping it running (albeit on 3 or 7 cylinders) is another discussion, but I usually find the "feel" of the proper combination and all 8 holes chime in! It isn't easy...and winter gas formulation makes it worse.

If yours is just spinning with out kicking and trying to fire, I'd bet the mixture is just too lean for the cold.

If you are experienced with using the accelerator as a choke, forgive my presumptiveness! I learned the technique on a 348 Chevy with three deuces and no choke!

Terry
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