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...


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





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 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.





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





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





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





How To Find A Vacuum Leak - EricTheCarGuy
Vacuum leaks are one of the biggest causes of engine performance problems. This video is pretty straight forward in it's approach to finding a vacuum leak. On thing I might mention is that not all vacuum leaks are at the engine. Some HVAC systems run on engine vacuum and can cause a leak under the dash in some cases. I've even seen vacuum operated door locks. Just be sure to be careful spraying flammable stuff on a hot engine, you don't want to take one problem and make it a whole lot worse. You can also use a spray bottle with water to do this same test. It may not be as effective, but you don't have to worry about spraying a flammable substance on a hot engine. For more information on diagnosing engine performance issues, check out this article I wrote. http://www.ericthecarguy.com/faq/solving-automotive-performance-issues The best place for answers to your automotive questions: http://www.ericthecarguy.com Facebook: https://www.facebook.com/EricTheCarGuy?fref=ts Twitter: https://twitter.com/EricTheCarGuy Google+: https://plus.google.com/100195180196698058780/posts Information on Premium Membership: https://www.ericthecarguy.com/premium-content-streaming-etcg-content Stay Dirty ETCG Due to factors beyond the control of EricTheCarGuy, it cannot guarantee against unauthorized modifications of this information, or improper use of this information.  EricTheCarGuy assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. EricTheCarGuy recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video.  Due to factors beyond the control of EricTheCarGuy, no information contained in this video shall create any express or implied warranty or guarantee of any particular result.  Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not EricTheCarGuy.





(3)- CARB SLOW JET ADJUST= EASY WAY
FOR OPTIMAL PERFORMANCE , THIS IS THE BEST, EASIEST UNDERSTOOD TECHNIQUE. Slow jets or air jets are very simple and have been around for decades and never changed.





Adjust the Gas / Idle Mixture Screws on Your Edelbrock Carburetor
Adjust the Gas / Idle Screws on You Edelbrock Carburetor For more information like this or with any questions for your classic Ford Mustang or classic cars email at MustangQnA@SBCGlobal.net, call me at my shop (847) 428-9889 or visit my website at http://www.MustangRestoration.net LIKE my facebook page to Win Mustang stuff!: http://www.Facebook.com/MustangRestorationInc





Setting the timing and adjusting the carb
Set the timing by ear, and got the idle slowed down so I could do a little adjusting on the carb. I'll do more when it's cold, so I can set the choke and all. Love the way it's sounding..





How To: Setting the Timing
How to set the timing on a 3 cyl Geo Metro engine, 1995 - 2001 models. Visit GeoMetroForum.com for more information on the repair of Geo Metros





Motorcraft 2 bbl adjustment
Heres the adjustment process for my 72 f-100 motorcraft carburetor





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





How to adjust a Chevy Edelbrock Carburetor
Adjust a 350 Chevy Edelbrock Carburetor. Very Cool!!





Which car is faster? Which Car is Faster?




Similar 1/4 mile timeslips to browse:

1974 Pontiac Firebird Formula : 10.220 @ 131.280
Brian Ingrassia, Engine: Pontiac 474, Tires: 29.5x10.5W ET Drag


1998 Ferrari F355 Spyder Twin Turbo: 11.300 @ 128.000
Tony D, Turbos: Twin Turbo Tires: Drag Radials


2000 Pontiac Firebird Formula : 11.430 @ 121.150
Rod Melchert, Engine: 2000 LS1, Turbos: gtb-35's (2) Tires: 26/11.50/16 et streets


1994 Pontiac Firebird Formula : 11.750 @ 119.710
Eric Bahme, Engine: 383 LT1, Tires: Skinnys & 28x10 ET Drags


1995 Pontiac Firebird Formula Heads/Cam: 11.780 @ 114.180
Matt Wright, Engine: LT1, Tires: Hoosier 26x10.5x16


1999 Pontiac Firebird Formula : 11.780 @ 115.980
Victor, Engine: LS1, Tires: TOYO Proxes TQ 255/50R16


1993 Pontiac Firebird Formula : 11.890 @ 115.610
Doug, Engine: Modified LT1 (350), Tires: ET Streets


1998 Pontiac Firebird Formula : 12.033 @ 112.020
Ed Green, Engine: 408 LQ9, Tires: 10.5x26 MT ET Streets


1980 Pontiac Firebird Formula : 12.100 @ 110.897
Ryan Kibler, Engine: 454, Tires: american racing


1998 Pontiac Firebird Formula : 12.170 @ 116.122
Jaime M., Engine: Stock Ls1 346 c.i.d., Supercharger: N/A Turbos: N/A Tires: Nitto


1970 Pontiac Firebird Formula 400: 12.199 @ 117.140
Roger, Engine: 400 Pontiac, Tires: Mickey Thompson ET Street


2000 Pontiac Firebird Formula Formula Firehawk: 12.230 @ 105.000
Judd,


1970 Pontiac Firebird Formula : 12.239 @ 113.239
Ed Harris, Engine: 6.6 400, Supercharger: None Turbos: None Tires: Sumitomo P245/50R16 (street)


1994 Pontiac Firebird Formula : 12.246 @ 115.750
Leroy Sawatzky, Engine: 383, Tires: ET Street Radials


2000 Pontiac Firebird Formula : 12.410 @ 115.040
Brandon, Engine: LS1, Tires: Yokahama YK420


1999 Pontiac Firebird Formula : 12.500 @ 110.800
gregory Knight, Engine: ls1, Supercharger: none Turbos: none Tires: 315 sumitomos


2001 Pontiac Firebird Formula 1SA: 12.594 @ 114.420
Eric, Engine: LS1 5665cc/346ci 310hp@5200 335ft/lb@4000, Supercharger: Naturally Aspirated Turbos: Naturally Aspirated Tires: R: Nitto 555R 315/35R17, F: Nitto 555 275/40R17


2005 Scion xB HKS Turbo: 12.680 @ 108.710
Tony, Engine: 1nzfe, Turbos: HKS


1994 Pontiac Firebird Formula : 12.748 @ 114.260
Zac Hendrickson, Engine: 5.7L 350c.i. Lt1, Tires: Mickey Thompson ET Street Radial


1989 Pontiac Firebird Formula Formula 350: 12.890 @ 107.240
Edward Harrelson, Engine: L98, Supercharger: no Turbos: no Tires: Mickey Thompson ET Streets 26x112.5x16


 


©2014 DragTimes - Disclaimer