The Ford Barn

buddyholley19 · 06-19-2013, 08:07 PM

Any tips for a newbie regarding flooding your zenith carb on start up many thanks

Tom Wesenberg · 06-19-2013, 10:08 PM

With an updraft carb it shouldn't take much throttle to clear a rich condition.
I never touch the choke during starting, unless it's a cold engine.

H. L. Chauvin · 06-19-2013, 10:45 PM

Depending on one's particular carburetor, many times a flooded engine can be cleared by opening the throttle all the way & cranking the engine.

Some carburetors I have need to be choked very slightly when engine is cold winter & summer.

The current rebuilt Zenith I am using now never needs choking.

Logan · 06-19-2013, 10:53 PM

Hold the throttle wide open while cranking like mentioned above. But also be prepared, once it fires and you have it held wide open you need to be really quick to adjust your spark to meet the rpm so it stays running and after that ease up on the throttle. All of this shouldn't take you more than 2-3 seconds after you feel it start.

ford3 · 06-19-2013, 11:06 PM

turn fuel off to carb, make sure choke isnt on, hold throttle wide open, crank engine till it starts, retard the throttle, let engine run till it dies, then turn fuel back on dont choke and start engine

larrys40 · 06-19-2013, 11:31 PM

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If you put your fingers in the throat and they are wet the float level is too high, as the cap and main are overflowing. As long as there is only one gasket under each... the float level is too high.. as Tom said.... the vitons are probably your best bet... with his caveats.... The new shutoffs seal very well.
Larry S

Purdy Swoft · 06-20-2013, 10:03 AM

Weak spark and over choking.

06-19-2013, 08:07 PM	#1
buddyholley19 Member Join Date: Nov 2012 Posts: 83	what to do if you flood the enine on start up Any tips for a newbie regarding flooding your zenith carb on start up many thanks

06-19-2013, 10:08 PM	#2
Tom Wesenberg Senior Member Join Date: May 2010 Location: Mpls, MN Posts: 27,582	Re: what to do if you flood the enine on start up With an updraft carb it shouldn't take much throttle to clear a rich condition. I never touch the choke during starting, unless it's a cold engine.

06-19-2013, 10:45 PM	#3
H. L. Chauvin Senior Member Join Date: May 2010 Posts: 4,179	Re: what to do if you flood the enine on start up Depending on one's particular carburetor, many times a flooded engine can be cleared by opening the throttle all the way & cranking the engine. Some carburetors I have need to be choked very slightly when engine is cold winter & summer. The current rebuilt Zenith I am using now never needs choking.

06-19-2013, 10:53 PM	#4
Logan Senior Member Join Date: May 2010 Location: Fort Worth, Texas Posts: 1,055	Re: what to do if you flood the enine on start up Hold the throttle wide open while cranking like mentioned above. But also be prepared, once it fires and you have it held wide open you need to be really quick to adjust your spark to meet the rpm so it stays running and after that ease up on the throttle. All of this shouldn't take you more than 2-3 seconds after you feel it start. __________________ Cowtown A's

06-19-2013, 11:06 PM	#5
ford3 Senior Member Join Date: Oct 2012 Location: oroville calif. Posts: 1,453	Re: what to do if you flood the enine on start up turn fuel off to carb, make sure choke isnt on, hold throttle wide open, crank engine till it starts, retard the throttle, let engine run till it dies, then turn fuel back on dont choke and start engine

06-19-2013, 11:31 PM	#6
larrys40 Senior Member Join Date: May 2010 Location: St Charles , Missouri Posts: 1,998	Re: what to do if you flood the enine on start up Sponsored Links (Register now to hide all advertisements) If you put your fingers in the throat and they are wet the float level is too high, as the cap and main are overflowing. As long as there is only one gasket under each... the float level is too high.. as Tom said.... the vitons are probably your best bet... with his caveats.... The new shutoffs seal very well. Larry S

06-20-2013, 10:03 AM	#7
Purdy Swoft Senior Member Join Date: May 2010 Location: Alabama Posts: 8,099	Re: what to do if you flood the enine on start up Weak spark and over choking.