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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yea I got a guys 125 yamaha breeze, it will run spraying starting fluid in it, n quits,replaced the boot between motor n carb,no help. do you have to have air filter on to start it? and if that doesn't work is it the carb,cause theres no air filter on it.thanks Mike
google HHO
Excellent Video Randy, …. extremely concise and well explained, not a single "err", or "ummm" to be heard, not like a good many that try to think and talk 'on the hoof' !!
I was looking for someone to show me how these carbs work thanks for the video
i've been running the bike with the choke on
thanks heaps. I found the Mikuni enriching info very helpful :)
the Japanese make the best everything
Thanks, never understood my "choke" system until now.
thanks Randy, for such an outstanding tips on fuel cabs, great to have guys like you with such knowledge, for guys like me with vintage bikes.
Very helpful – thanks very much!
You have your butler throttle up on the amal carb while you suit up and have a spot of tea.
randy, my bike wont start , take off the air box dump a bit of fuel in there, it starts and will continue to start all day . next morning wont start . . .it is a yamaha nouvu 2 , its getting fuel to the carb (fuel line off ,crank the engine, fuel comes out) . strange thing is once i get it started it runs all day fine , starts no problem. but if it sits for more than 12 hours. it will start for a second then die and will not start for anything . .until i pour a bit of gas where the air box connects. i thought if i understood carbs with these symptoms the problem would be obvious. but perhaps not
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Excellent video. Thanks for the clear and useful information.
Need Help with your bike project? Go to rcycle.com, then click on the link "Need Help?"
Hee buddy i have the service manualls for all the Gilera scooters 50/125 and 180cc if you are interested for your website
Great video! Really cleared up a lot of confusion for me!
Good info. Thanks
What an excellent video, needed some info like this on the Mikuni.
Thank you very much randy!
That video was very helpful!
Now i finally know how these amal carburettors work!
I am planning to get one of them installed in my father's royal enfield here in India!
Thanks again
Thanks .Very informative an well explained.
Hey randy. I have a kazuma kids atv and it will run if I hold in the throttle but it just barely stays crunk. If I let off or choke it, it dies. Ive tried adjusting it but that hasn't worked. Ive alsi tried vleaning it. Any ideas on what might be wrong?
excellent video thank you, this has really helped with my restoration project
On my 85 Honda Rebel… it use to be you choked a cold engine to start it, tweak the choke, and once warmed up you could turn the choke fully off. I assume that is normal and makes total sense to me.
Now however, I have to choke a cold engine as before, and tweak it… but the engine seems to run best once its warm with still a bit of choke on. If I turn the choke fully off, the engine will stall out with no throttle like at a stop. I've adjusted the idle screw so it wont do that , but the engine still has a sweet spot it likes to purr and run at when warm and under power with the choke a little on.
I don't know if the Rebel has a real choke, or enrichment circuit, or both. It seems to be able to do a fast idle with choke as you described during start.
What should I adjust?
I'm trying to think maybe I made some changes inside the air box a good while back with a new filter, with maybe a filter that lets air in easier… and maybe that's why it prefers a slightly richer mix. Someone also took a broomstick and punched out the exhaust pipe internals before I bought the bike which might also be letting the air flow out more freely and make it run leaner than factory.
I'm going to check the air box tomorrow and see what I did… and if a thicker filter fixes the problem.
tyvm sir, i got my problem solved
I wanted to figure out how to clean my carburetor. It has been parked for about 4 months while away and when started, it started stuttering. I figure I should clean it, get fresh gas and I should be good.
Is there work in this profession abroad or to change my folks this work and good Mahwalaml abroad because I love to work abroad this profession is mechanical Thank you
Thanks for explaining the Mikuni carb 'Choke'. That thing had me so confused before I watched your vid.
Try not to laugh but I have just been trying to get a BSA B31 to run properly with no success it turns out I have had the choke open all along a thousand blessings to you for the video
Thank you for the insight..
Thanks for this vid. This really explains WHY the choke cable is missing on my Amal 930. There is a choke plug replacing it. The bike is a '57 Triumph Frame with a 62 TR6 motor with a 70 AMAL 930. Chopped and Bobbed. Bitch for me to start cold. But this explains lot.
Good vid., thanks.
Thanks Randy, great video!
Thanks so much Randy on the great explanation.