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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


 


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Two-Stroke Scooter / ATV Carburetor Settings And Adjustments 2of4 : Idle Speed & Mixture
Part 2 of a 4 part video detailing all of the basic settings and adjustments of the carburetors found on Minarelli / Jog / 1E40QMB powered 50-90cc scooters and youth ATVs. Part 2 shows how to adjust the idle speed and mixture settings. Please like the video if you found it to be helpful.





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 hey... awesome video..nicely explained ! just one question. Please do tel me wts AIR NEEDLE and LOW JET used for again. ? i mean how and what do they work? thanx :) Reply · The air needle is like a transitional restriction to increase vacuum pressure and tapered to prime the main jet flow gradually to ramp up fuel flow from the idle/low circuit to the main circuit. Think of the circuits like gears or stairs. The needle covers transition between 3rd gear to about 5th gear on a six speed. It overlaps basically. Fuel is getting by it from the idle/low- on through to where it's completely out of the way of the main jet and the main jet fuel flow is roaring like the straw/compressor example. Without the needle the carb would work, but not as smoothly through middle throttle (where most people ride and have the most fine input or throttle roll back and forth. The low jet is like second gear on a transmission. You can shift from 1st to 3rd, but again you risk stalling and it won't be as smooth. Also there isn't really the mechanical inertia to carry the process on like you have with a rolling vehicle with a flywheel on the engine and the wheels turning. The pistons still create vacuum every other time they go down, but air just doesn't have the punch that steel does when in motion. The circuits in a carburetor have to be there or you would have a limit on RPM range. An idle jet can't deliver enough fuel to really scream, and the main jet couldn't go slow and would be VERY hard to start because the engine would have to be spun up really fast. So you have usually four or five circuits (I want to say jets, but their physically different) that get air flow like stairs as the throttle opens. They are typically 1. Starting circuit (choke on) 2. Idle circuit 3. low jet 4. Jet Needle 5. Main jet. How Motorcycle Carburetors work and how to tune and clean them Check out my other channel here http://www.youtube.com/watch?v=1KKvwMaIotA





Mikuni Carb series #4 How a Mikuni carb works.
Ever wonder how a carb works - I'll explain it.





Bicycle Engine Kit Carburettor Needle Setting Tips
How to install and check the cable, spring, barrell, needle and clip that dwell on the inside of the carburettor of your bicycle engine kit.





CV Carburetor
How a cv carburetor works. Sound of a YAMAHA XTZ750 Super Tenere.





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.





Mikuni Carb Series # 3 assembly video with details.
This is how you assemble a cleaned mikuni carb.





1998 Kawasaki kx100 Keihin PE-26 carb rebuild
Carburetor rebuild of a 98 KX100, KX80 and other bikes with a Keihin PE 26 carb





Yamaha 2 stroke basics (Builder) - Post By BoatTest.Com
http://www.boattest.com/vlibrary/vlist.aspx?s=Yamaha&BtnSearch=Video+Search &btArticle=Article#Others





Reassembling Keihin PWK Carburetor
Reassembling Keihin PWK carburetor





How to clean a carburetor in 15 minutes
These same instructions apply to most other slide throttle style carbs from Mikuni, Keihin, etc You can also take out the idle screw and spring while cleaning if you wish, but typically that isn't required.





How to adjust the jets on motorcycle carburetors
This is a brief introduction to the fairly touchy process of re-jetting your carbs. The techniques discussed here are fairly universal to most carburated motorcycles, but not all, so your first step in performing carb tuning should be to consult your repair manual and online forums. Hopefully this video can demystify a lot of the process for you, so that you have the courage and interest to do this yourself. Let me know if you have any questions.





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 to change piston / top end rebuild 2002-2007 Honda Cr 250
Join the FREZ PRODUCTIONS Facebook site! https://www.facebook.com/frezproductions I`ve got many nice comments for making the "Honda Cr 125 piston / top end rebuild" movie. In this movie, I show in good detail how to chance the piston on your two stroke Honda Cr 125. A similar movie for the Honda Cr250 would be nice, and that's what I have made. Hope you like it! The bike used in this movie is a 2007 Honda Cr250. Always use the right manual for your bike! The 2002-2007 Honda Cr250 bikes are very much alike but there are some changes. That's why the right manual for your year is important. Good luck! Frez Productions





SHiRTLESS drag racer with AWESOME SKILLS and powerful SCOOTER !
A 180cc scooter with tremendous power modified for drag racing by a team from Penaranda, Nueva Ecija. video courtesy of Jeff-Jeff T Tentia





Which car is faster? Which Car is Faster?




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