(Fix) Holley Carb won't idle unless i keep giving it gas

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Here you will learn the cause of the car wont stay on unless you keep giving it gas problem. The mustang has a 650 double pumper holley carburetor and the only way that the car stays on is if i keep giving it throttle. The moment i stop pumping the pedal it dies. idle screw adjustment doesn't work, and will only start good and dies right after. The adjustment made was to the transfer slot on the bottom end of the carburetor. This adjustment pertains to all holley carbs and the other carbs like edelbrock all have a smiliar idea behind how it all works. if you have high idle issues only at start up, check out this video • How to Adjust Fast idl...
If you have any further issues that you would like for me to help you troubleshoot, feel free to drop a comment and i will do my best to answer the questions for you.

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3 окт 2024

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Комментарии : 31

@ase-asksomeoneelse5584 10 месяцев назад

I have been building and tuning carbs for 25 years. Its always nice to watch others dealing with my problems lol. Great work.

@EddiesCustomsandRestorations 10 месяцев назад

Lol they sure have us chasing our tails sometimes! Thank you for your comment!

@poinsettias 4 месяца назад

Wish you could help me with mine 😂💯

@fxpestoperator5527 Месяц назад

Man you are so smart dude!!!!!!!!!!! Another Awesome video!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

@EddiesCustomsandRestorations Месяц назад

Really appreciate that man!

@harmankardon478 4 месяца назад

Nice job I believe I have the same issues with the secondary idle slot.

@edperez8139 11 месяцев назад

Hidden secret there. Great info.

@weedbros4202 День назад

Thank you so much for this video definitely the problem on my carb. But for some reason after I adjusted it the link bar going from primary to secondary lever is binding up any ideas?

@EddiesCustomsandRestorations День назад

@@weedbros4202 hmm that is odd. Check the little plastic cams by the accelerator to make sure that's not binding.

@JustTruckin 9 месяцев назад

Thank you

@scottcarnduff2897 3 месяца назад

Would this apply on a vacuum secondary Holley as well?

@ase-asksomeoneelse5584 10 месяцев назад

If the fuel gauge is correct, might want to add some gas. And love the old school eq

@EddiesCustomsandRestorations 10 месяцев назад

Oh no, the furl guage doesn't work. Another thing on the to do list

@matthewhummel6023 4 месяца назад

Turn up the idle screw to 750 rpm, the transition circuit was out of adjustment.

@dogbone17jackson31 2 месяца назад

Do you think this could happen on a brand new one just got new one same issue

@EddiesCustomsandRestorations 2 месяца назад

@@dogbone17jackson31 definitely. Its happened to where I havent been able to figure out whats wrong with it and its new. Perhaps manufacturas wrong but yes I've had bad new ones before.

@alicenfred Месяц назад

My 650 Holley double pumper does not have an idle set screw on the primary only the secondary?

@EddiesCustomsandRestorations Месяц назад

@@alicenfred it should have one which is your curb idle screw. Check this video out. Where I sort of point the curb idle screw out. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-9wNNubt0NXE.html

@KenyattaLambie 4 месяца назад

What size screw driver did you use to adjust the transverse slot

@EddiesCustomsandRestorations 4 месяца назад

i dont know what size that would be. To be honest with you i have a ton of screwdrivers but their size has never been common knowledge size they are never labeled. But the flat is about 1/8 of an inch wide.

@maniacmachanic9870 10 месяцев назад

I got a pos edelbrock carb has the same problem can’t get it to idle after rebuilding it

@EddiesCustomsandRestorations 10 месяцев назад

make sure you dont have any vacuum hoses cracked. disconnect your brake booster hose and plug it up to make sure you dont have an internal booster leak. Plug all ports on the carburetor with the little rubber caps. check your needle to make sure its not stuck closed not letting fuel into one of the fuel bowls. These are all things to look for. make sure the gasket under the carb is in good shape too because this will cause unmetered air to enter under the carb causing poor idle as well. Hope this helps

@maniacmachanic9870 10 месяцев назад

@@EddiesCustomsandRestorations yea i have the booster blocked rite now i have put new mounting gaskets on the intake pulled intake and put new gaskets there too have pulled it apart a few times and checked my floats are exactly were they should be /new fuel pump also the car sat for the winter then this issue happened i am thinking if something got plugged in the idle circuit ..when it dies it won’t start unless i give it a couple of pumps to the throttle never had such a stupid issue with a edelbrock 🤬🤦🏻‍♂️runs when i rev it good just no idle i am just lost on it brand new carb

@EddiesCustomsandRestorations 10 месяцев назад

@@maniacmachanic9870 have you blown compressed air through all the idle circuit holes? One thing you can do is spray soapy water into the holes to where you fill them up and then slowly blow compressed air into it and make sure you see the soapy water exit on the opposite end of the idle circuit just to make absolute sertain that they are not clogged. This is just a way for you to actually see the water coming out the other end. Afterwards make sure you clean the soapy water out with some carb cleaner or gas to not leave that in there.

@maniacmachanic9870 10 месяцев назад

@@EddiesCustomsandRestorations i have pulled the idle mixture screws and blew air in there a couple of times no results i need to pull the carb and check it out again going to try what your saying with soapy water and blow out all the ports in the carb with air Thanks for the help

@EddiesCustomsandRestorations 10 месяцев назад

@@maniacmachanic9870 yea just so you can actually see the stream coming out the other end when you put soapy water through it. Sounds silly but it allows you to see the stream without fail. Check your plugs to make sure they arent all black and fowled up. That will cause poor ignition and can also behave sort of the same way tonwhere under acceleration it will stay on because the spark fires are firing faster to where it can over power the fowl but at slow ignition its too slow and not enough. Ive seen it. Doesn't hurt to check them.