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do most of you run chokes on your carbs?

Old 12-15-2013, 10:19 AM
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Default do most of you run chokes on your carbs?

what are the pros and cons
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Old 12-15-2013, 10:38 AM
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I have never had a performance boat that had a choke on the carb.

Never had a problem unless it was very cold out. And even then it just takes a little finesse to start and couple minutes to warm up.
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Old 12-15-2013, 12:13 PM
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what is a carb?do they still make them?ok,just kidding,most carbed boats do not use a choke because it,s pretty warm out when we go boating.

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Old 12-15-2013, 12:28 PM
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Dont usee them on my cars or boats
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Old 12-15-2013, 12:53 PM
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Even though a lot of boats don't have chokes ,if you are asking the question ,you may be happier with a choke. Lots of younger people don't know how to start a motor ....They want to "turn it on ".. To "turn a motor on" means fuel injection or a properly adjusted choke
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Old 12-15-2013, 01:00 PM
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Mercury used them on most of the carb engines. HP500's, 420's, 600sc's, 800sc's, and the 330/365/370/400HP engines had quadrajets with chokes. Really not needed, but can help make them a little easier to start and stay running for the first start up of the day.
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Old 12-15-2013, 01:40 PM
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Cut the entire choke housing off of a Holley type carb and it will improve airflow. I did it on my hot rod. My boat is EFI.
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Old 12-15-2013, 02:04 PM
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I wouldn't waste my time milling the choke tower off a Holley. Many tests have been done on this in the past 30 years, the cfm gain is minor. Even if you gain 25cfm, (most tests gained 10-20) it won't make a bit of difference in a boat other than looking cooler.

If the engine needs more cfm your better off getting a larger carb or a proform main body . Just my opinion.
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Old 12-15-2013, 02:36 PM
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I had stock 502 mag with quadrajets (with chokes) and now they are Scorpion 600 hp 540 ci with 950 quick fuel carbs with no chokes. It starts the same or better now and doesnt need the warm up time to stay idling like it did before.
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Old 12-15-2013, 03:00 PM
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Ditto!

Originally Posted by MILD THUNDER
I wouldn't waste my time milling the choke tower off a Holley. Many tests have been done on this in the past 30 years, the cfm gain is minor. Even if you gain 25cfm, (most tests gained 10-20) it won't make a bit of difference in a boat other than looking cooler.

If the engine needs more cfm your better off getting a larger carb or a proform main body . Just my opinion.
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