HPMX / WEBER IDF screw adjustments

Describes what the different screws on the downdraft carburetor are for along with adjustment advice.

[@V8N8T]

Great video EZGZ! Whenever I setup my idf's i always adjust the air bypass screws after they ar synced to allow even flow thru all the barrels for a super smooth runner:)

[@krazveedub6781]

I feel this video was made for me. I am currently working on my 40 idf and this video is very informative

[@demetricshorter6953]

Did you ever correct the issue

[@Darkstorm666]

Should I adjust the air bypass screws instead of seating them if the engine is running rich?

[@VWJawbreaker]

Another great video with clear instructions and explanations!

[@fernandomartinez5812]

EZ is the bomb!

[@chrisstephenson6718]

Thanks EZGZ, just what I needed.

[@J8zzy]

Great to hear EZGZ instructions and videos. Have a nice summer 2023. Keep On Rolling❤ EZGZ The Carb Wizard RULEZ.

[@TheEZGZ]

Thanks, you too!

[@plg402]

what a great video! You sir just saved me a lot of money!

[@dirtyscant3447]

EZGZ!!!!Thanks for sharing your wizard skills!!

[@kevinhamling1963]

G'day Mr EZGZ, An awesome video. Hope you doing well ✌️Peace from Melbourne Australia.

[@TheEZGZ]

Always good to have you along mate 🙏

[@RustyGlovebox]

Great info GZ, you have a really helpful vid here Buddy

[@TheEZGZ]

I’m trying to learn how to post vids from my phone hehehe

[@philipcarmichael9112]

Hi I’ve got a 1760 40 idf. 110 cam do you know what jets I should start with

[@Antarath]

My VW came with a single EMPI HPMX equipped with a 009 distributor. Always wondered why the vacuum ports on these things are never used. Guess I have a carb for sale then.

[@spidula]

Super usefull explanation on this ez...good stuff and good to see all your vids, I'm gona catch up on a few others

[@TheEZGZ]

Awesome, thank you!

[@DrBaconCommunity]

thanks for your help! great video!

[@TheEZGZ]

You're welcome!

[@johnj2496]

thanks great video 🤔 i got my idfs on off a guy on ebay in maybe 2002 but they are from spain and my idle jets are NOT thru the side but down thru the top and ive only got the 2 idle adjustment screws by the base

[@TheEZGZ]

Interesting. I thought all IDF and the copy's were the same...

[@bykr2009]

Good information, do you know what size that accelerator pump adjustment nut is ?

[@OwhyeeVdub]

Great breakdown.

[@goldentrunnell7450]

Can you swap the older air/fuel screws for the newer style or does the old seat need the older screws? I'm rebuilding a set of 44 IDF Italian and was curious if the newer style screws would be better for adjusting? Thanks

[@TheEZGZ]

If the seats are good the screws are interchangeable. For easier fine tuning use the longer screw but you may be more than 1 1/4 turns out on the idle.

[@goldentrunnell7450]

@@TheEZGZ thanks!

[@christopherwaller5600]

Hey EZGZ thanks for the great video. I’m trying to get my bug to pass emissions, and my results say I’m idling rich. Do I turn that hex screw at the bottom in or out ? Thanks again

[@TheEZGZ]

Idle fuel needle in very slowly and listen for idle ruff idle or popping noise then back out until it smoothes out. Take your time. Ignition timing can also effect emissions test. Also use best high octane available in your area

[@kade997]

Hey ez I want to get a thought on my 44 hpmx. It stalled at every turn and when I got back home and let it cool down it would no longer idle even though I hadn’t adjusted it.

[@kade997]

It had idled before while sitting still

[@TheEZGZ]

Sounds like to much fuel pressure and the floats aren’t holding the fuel back

[@kade997]

@@TheEZGZ thanks I’ll mess with it tomorrow

[@demetricshorter6953]

Mr EZ, I believe I need to tweak my accelerator spring, it’s idling fine, running good. But during transitions it stalls , sometimes completely cuts off, even while cornering. I was afraid to adjust the pump because I was getting a small leak from the pump spring leaking down into the cylinders (dual 40idf webers) any recommendations are much appreciated sir????

[@TheEZGZ]

sounds like you need a new accelerator pump diaphragm .

[@demetricshorter6953]

@@TheEZGZ thanks. Here’s one other thing. Once I turned the car off, the carbs were making a noise( like compression) and gas was sitting in the bowel. I took a wrench and turned the engine and noise faded away… could this be timing too?

[@clintonwilloughby7606]

Just did my adjustments last weekend on my duals. #4 had a progression port clogged. Had to take the carb off and spray it out. Wish these plugs were tapped for cleaning them. Is there an easier way to clean the progression ports? As always, good video! Hope to see you at the Bug In next weekend!

[@chadburkle1461]

Do you live in Arizona or Colorado? I will be going that way this week. Don't know how you feel about a fan coming to visit.

[@TheEZGZ]

I’m in Loveland Colorado if you want to stop by

[@chadburkle1461]

@@TheEZGZ I might be able to stop by I'm about 200 miles from Denver Colorado

[@vintage76vipergreenBeetle]

Great info.👍

[@johnklink4825]

I run dual Webers. Car backfires. Ant thoughts?

[@micksmith9768]

did you solve it? usually its a leaking exhaust , but i think a crack between the plug and valve can also do this

[@CptnCrncyRzr]

Thank you

[@TheEZGZ]

You're welcome. Create a great ride.

[@JohnnyRebel1776]

EZ! 👍🏻