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Synchronizing Multiple Carburetors

Synchronizing Multiple Carburetors vw beetle


 


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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.





EMPI HPMX Initial Set-Up & Adjustment
EMPI HPMX Initial Set-Up & Adjustment video. This instructional video will provide an introduction to the EMPI HPMX Carburetor and all of it's key components.





Air Cooled Vw Beetle Alternator Removal Fan Adjustment Pt 1
Air Cooled Vw Beetle Alternator Removal Fan Adjustment Pt 1





VW DUAL PORT CROSS FIRE INTAKE SYSTEM
Replaces dual carbs.. and messy linkage.Cuts maintenance costs in half..tons of room for plug removal and replacement. fits in a bus or bug with clearance for the deck lid.sounds better than duals.. and has crisp throttle response at any rpm .. no flat spots even with a oo9 dist, comes to order with your carb base pattern. works well at 40 degrees temps and above . do people actually drive their bugs and busses at night? easy ......................................





308 GTS Carb Sync





Bug Restoration (Official Full Version)
VW Bug Restoration, from beginning to end!





Air Cooled Vw Beetle Alternator Removal Fan Adjustment Pt 2
Air Cooled Vw Beetle Alternator Removal Fan Adjustment Pt 2





Volkswagen Beetle/Bug-Weber Dual Carbs Verses Weber Progressive Carburetor. Part 2
If it works-don't change it!. http://www.swrnc.com or 972-420-1293





Balancing Carburettors with home made manometer
Balancing/Syncing the carbs on my '90 suzuki across gsx250f. A run down on what the manometer is made from and how it works, plus a rather length demonstration on it working. As you can tell its ultra sensitive. the adjustments were all less than 1/32nd of a turn. Excuse my terrible commentating. Thats impromptu video'ing for you :D





Homemade 4 Cylinder Carburetor Synchronizer/Manometer
An extended video of my homemade manometer with detailed explanations and demonstrations of it in operation. Very inexpensive yet very accurate. I used Snapple bottles which worked fine, but if you can get taller bottles that would be better as it gives you more time to fix a severely out-of-sync cylinder before a bottle runs dry. You'll notice my design links all 4 cylinders together to give you true comparison across all 4 cylinders. Since it's been asked: if you get air in the reservoir line simply blow/suck on one of the cylinder lines until all air bubbles are gone; just like if a bottle goes dry, etc. And for the carburetor adapters, you can make your own (see my comment in the comments section) or buy them here: http://www.z1enterprises.com/ItemDetails.aspx?itemDescription=Vacuum+Carb+S ync+Adapter+Kit+5mm&item=MP08-0013 Here's a list of required materials: 4 Glass bottles 4 Rubber Stoppers 4 plastic 'tees' 20'-25' clear tubing 4 intake port adapters (specific to your bike make/model) Tip: put the stoppers in the freezer for a while before trying to drill the holes for the tubing and it will drill much cleaner.





Kawasaki VN 750 carb sync





Kadron Solex H40/44EIS Tuning and Installation Clinic
Jeff Lain of the Kaddie Shack walks through installation, tuning, and synchronizing Kadron Solex H40/44EIS carburetors on a performance VW engine. This is a great companion to our Tuning, Troubleshooting, and Installation manual, available for free download at KaddieShack.com.





Carburetor Repair-VW Bug-Vapor Lock Quick Fix-Part 1
Volkswagen Beetles have a serious problems, and Minnie The BodyShop Girl thinks she has the answer! http://www.swrnc.com or 972-420-1293





Motion Pro - SyncPro Carburetor Tuner: Step-by-Step Tutorial
Find this on the Dennis Kirk product page: http://bit.ly/ytfTqG • New, mercury-free tool for intake synchronization of engines with multiple carburetors or throttle bodies • Precise four-channel vacuum indicator for use with any two-, three- or four-cylinder 4-stroke motorcycles • Spill-proof design lets you store this tool in a horizontal or vertical position • Easy-to-read scale; unaffected by barometric pressure changes • Includes hang hook to clip onto the handlebars for easy use • ABS enclosure is rugged and impact-resistant; includes a convenient storage area for adapters, etc. and rubber feet that help prevent sliding • Includes manometer fluid, hoses, 5mm adapters, in-line restrictors and instructions • 6mm adapters are available order Part No. 28179 • Patent pending • Made in the U.S.A. Included Items: (4) Restriction Plugs (1) Vacuum Hose (1) 6 Port Tee Adapter (2) Long Brass Adapter 4 in. Long (2) Brass Adapter 2 in. Long (1) Hanger Hook (1) Carb Sync Tuner





Dellorto / Weber carb secrets #1
This video covers venturi replacement in both.





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