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Re: cold start,

October 8 2017 at 3:35 PM
Don Ragan  (Login gdr45)
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Response to Trying to figure this out about carburetors. Fuel from acc pump at start up..........

In my opinion, it's not how many cyl' get fuel, but how much of a rich fuel mixture you get . A cold engine does not have good atomization so the choke restricts air so the rich mix can ignite. EFI is similar but it triples the pulse width of the injectors to obtain a rich cold start mixture. The acc pump does give that first shot of fuel, providing there is fuel in the carb. If not, the pump has to get it there. Don't mean to sound elementary but that's how I could explain it. DR


    
This message has been edited by gdr45 on Oct 8, 2017 3:47 PM


 
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