Drag Racing 1/4 Mile times 0-60 Dyno Fast Cars Muscle Cars

How to adjust carburetor mixture screws

Here's how to find and adjust the mixture screws on your carburetor. Note that metering-block style carbs such as Holley and Demon more often have one or 2 mixture screws in each metering block depending on the number of venturi. Also those may not be located at the bottom of the carb as in factory carburetors.


 


More Videos...


Rochester Carburetor Trick!
If your Rochester Quadrajet or Dualjet Carburetor is Hesitating try this Trick!





Auto Repair & Maintenance : How to Adjust Carburetors
Idle speed and idle mixture are the two most common adjustments made to carburetors, and these adjustments start by warming up the vehicle to full engine-operating temperature. Find out how to perform a lean-drop adjustment with help from an ASE-certified master automobile technician in this free video on carburetors. Expert: Clark Mason Bio: Clark Mason is an ASE-certified master automobile technician. Filmmaker: Christian Munoz-Donoso





DIY Carburetor Synchronize / Balance Tool
This is a homemade bottle style carburetor synchronization tool ( homemade manometer ) and balancing tool. If you are going to attempt to, or want to know how to sync your carburetors, there are a few things to know first. 1. Carburetor Synchronization = Adjusting your carburetor throttle plates or throttle slides so they move from your carburetors idle setting to wide open throttle simultaneously, or in sync with each other. 2. Balancing Carburetors = Adjusting your carburetors so they allow each cylinder to flow or pull the same amount of air and fuel at your desired idle speed. Carburetor sync and carburetor balancing go hand in hand. 3. Idle speed screw adjustments must be made at normal operation temperatures. 4. Air fuel mixture screw adjustments must be made at normal operating temperatures. 5. Air fuel mixture adjustments only affect your carburetors pilot circuit, which means from idle to part throttle. Air fuel mixture screw adjustments have zero effect on wide open throttle. 6. Carburetor running rich = Too much gas not enough air. Carburetor running lean = Too much air not enough gas. 7. Wide open throttle rich or lean conditions are adjusted two ways: A. Carburetors with throttle slides have a clip on the carburetor main jet needle. Raising the main jet needle clip drops the needle deeper into the main jet and will lean the carburetor out. Lowering the main jet needle clip will raise the needle and enrich your carburetors mix. B. Carburetors with throttle plates (butterfly style) need to have the carburetors main jet changed to a larger diameter jet to richen the mix or a smaller diameter jet to lean your mix. 8. If your engine will not idle correctly or your air fuel mixture screws seem to have no affect on the engine at idle, then most likely your pilot jet circuit is clogged and you should clean it. The snowmobile in the video is a 1986 Arctic cat cougar 500 fan cooled, it has Mikuni vm34 roundslide carburetors which have a primer nipple on the engine side of the throttle slide. Perfect place to attach a homemade manometer to balance everything. These mikuni vm34 roundslide carburetors were common on many motorcycles, snowmobiles and atv's. Suzuki, yamaha, polaris, arctic cat, all used them at one time or another, they are good carburetors when they are dialed in.





How Motorcycle Carburetors work and how to tune and clean them
Here's a link to the kind of carb cleaner I like best (it IS the best) http://www.amazon.com/gp/product/B002ERT666/ref=as_li_qf_sp_asin_il_tl?ie=U TF8&camp=1789&creative=9325&creativeASIN=B002ERT666&linkCode=as2&tag=httpww wyou00f-20 How Motorcycle Carburetors work and how to tune and clean them Check out my other channel here http://www.youtube.com/watch?v=1KKvwMaIotA





re-jet your Quadrajet (part 1)
rejetting a quadrajet





How to rebuild a Rochestor Quadrajet part 1
Introduction and beginning the disassembly process





Holley carb adjustment basics
-just a quick overview of how to adjust a holley and what to know. happy to answer any tuning issues. i know far more than id like to about these old holleys. not a very good public speaker clearly. HOLLEY CARB FLOODING & HARD STARTING SOLUTIONS http://youtu.be/hn4HovYvrF0





How a carburetor works, schemes and explanations
This video explains, not in too much detail, how a 28mm Walbro diaphragm carburetor works (using mainly schemes to point out what happens inside). It explains what occurs at the venturi, what the butterfly valve is for, how the needle doses the amount of fuel, and how does the diaphragm slide adjust itself.





How to adjust Quadrajet secondary air doors
These take some trial and error to get them adjusted so that there is no bog, but it's not hard to do-here's how.





How to clean out the carb on a small engine
This happens to be a Craftsman 4.0hp engine, but this procedure is the same on most small engine carburetors





Randy's Cycle Service Explains Carburetors, Choke & Cold Starting - vintage motorcycles @ rcycle.com
Randy's Cycle Service Explains Carburetors, Choke & Cold Starting - vintage motorcycles. Randy's Cycle Service & Restoration in central Virginia USA. We service & restore all makes & models. We do not source or stock parts or sell vehicles. Technical advice starting at $25. Randy's Cycle Service & Restoration, www.rcycle.com





for Tim - Rochester tips





How To Adjust The Accelerator Pump On Holley Carburetors
How-to adjust the accelerator pump on Holley carburetors to avoid stumbling and hesitation upon acceleration. Tips include: How to check for the clearance between the accelerator pump diaphragm arm & operating lever; how-to select the correct accelerator pump nozzle size, and accelerator pump cam selection and installation. Additional information can be found on Holley's website: http://forums.holley.com/entry.php?428-How-To-Cure-Carburetor-Stumble





Motorcycle Mikuni CV Carburetor Cleaning for Suzuki, Honda, Yamaha Tutorial
Links below. Step by step instruction on how to disassemble, clean and assemble Mikuni CV Carburetors for Suzuki, Honda, Yamaha motorcycles... I hope you find this tutorial informative if long. For parts for your Vintage Japanese Motorcycle, please visit http://z1enterprises.com These guys always have the best prices and fastest shipping. Thank you for watching. Anti Seize Lubricant http://amzn.to/1bKe5HH





How Does A Carburetor Work? Engine Diagnostics 101 Go Kart Guru
Trouble shooting engines can be very frustrating especially if you don't know anything about carburetors. This course shows how the carburetor works. It shows you why it works and some of the other functions of a carb. Visit Go Kart Guru.com for more details.





Which car is faster? Which Car is Faster?




Similar 1/4 mile timeslips to browse:

1997 Dodge Neon Sport: 9.846 @ 145.050
Steve Lockett, Engine: 2.4,


1998 Dodge Neon : 10.010 @ 138.000
Ed Carpino, Engine: 340 bored to 383 small blck crysler, Tires: mickey tompson et drag


1998 Dodge Neon ACR Coupe: 10.240 @ 130.000
Len Ayala, Engine: 2.0L chrysler, Turbos: Garrett GT series Tires: M/T


1999 Dodge Neon sport coupe: 10.350 @ 142.000
Eric Duncan, Engine: 2.0 , fully build, DOHC, Tires: m/t 24.5x13x8


2006 Ariel Atom 450 Custom Turbo: 10.425 @ 134.680
James Buckley, Engine: Turbocharged K20, Turbos: CPL worked Garrett Tires: M+H wrinkle wall slicks with inner tubes


1998 Dodge Neon Highline SOHC: 10.710 @ 124.000
Kevin Flint, Engine: 2.0 SOHC, Supercharger: n/a Turbos: t-52 Tires: 24.5x8x13 Hoosier


1996 Dodge Neon sport: 10.760 @ 128.000
Angela Galante, Engine: 2.4, SRT internals, Turbos: Hahn Racecraft 25G Tires: 24 1/2X8X13 Hoosier slicks


2006 Ariel Atom 300: 10.866 @ 123.990
Andrew, Engine: Honda K20, Tires: Yokohama A048s


2008 Infiniti G37 Sport - 5AT: 11.130 @ 123.930
Jim Cooper, Engine: Built long block, Turbos: GTM Twin turbo Stage II Tires: BF Goodrich TA 18


2009 Ariel Atom 3: 11.210 @ 125.220
NA, Engine: Inline 4, Supercharged, 300HP,


1997 Dodge Neon ACR: 11.294 @ 127.820
Matt Tripp, Engine: 2.4 DOHC (SRT-4 swap), Turbos: BW S372 Tires: M&H 25x8.7


1996 Dodge Neon 2door 2.2Lstroker nitrous: 11.400 @ 124.000
matthew devoe, Engine: 2.2Lstroker, Tires: mh 24.5/8.5/13slick mh 24/3.5/15 skinny


2007 Ariel Atom 300: 11.500 @ 115.510
Darren Atack, Engine: Supercharged Honda K20a, Supercharger: Jackson Racing Tires: Yokohama R888


2007 Ariel Atom 2: 11.510 @ 117.020
NA,


2006 Ariel Atom 300: 11.510 @ 115.510
dazzassti,


2007 Victory Hammer : 11.530 @ 113.000
clayton lamb, Engine: 100ci,


1998 Dodge Neon Coupe: 11.736 @ 123.865
Christian Nolin, Engine: 2.4, Tires: 24.5x8.5x13


1996 Dodge Neon Sport Coupe: 11.800 @ 123.750
Eric Urness, Engine: 2.4L, Turbos: T3/T04S 60trim .70ar/ .63ar 76 trim Tires: 25x9x13 M&H


2005 Victory Hammer : 11.843 @ 111.360
Michael Murphy, Engine: 100 cu in,


2008 Infiniti G37 GTM stg2 turbo: 11.916 @ 119.240
John K, Engine: stock, Turbos: GTM stg2


 


©2014 DragTimes - Disclaimer