Automatic Choke operation - dеllorto carburettor - How does it works and what's inside
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- เผยแพร่เมื่อ 11 พ.ค. 2016
- What's inside an automatic choke of dellorto carburettor (PHVA or PHVB).
The choke works at around 12V. Max consumption in the first few seconds drops from 2A to 0.6 A and then gradually goes down to 0.2A, where it stays. The needle extends to max 8mm and it took it around 5-10mins.
Another nice video demonstrating the operation: • GY6 Enricher / Automat...
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Thanks! Good video my choke green whire broke very helpfull!
Thank you and Well done
Thanks dude
Waoooo very good information. thank you
Thank you for destroying your choke. Just about to buy a scooter and I´m glad I don't need to destroy mine to know how it works. Great video :D
Vítor Arbex you destroy your choke dude.
Thank you.
Does anyone know what the lil disc piece is made of or if I can use something else between them I lost mine.... ty
Nice video you have LIKE from me.
I have a problem on my Carburettor, choke dont have energy mean power.
Its speedfight 3 moped
Where from chock take power?
Nice video. Very helpful. Do you think it's possible to connect directly to the battery to test this unit?
yes
You can attach a 12v battery using test wires with alligator clamps on each end
Thanks
Can i just connect this to my battery with a manual switch?
what if that device has no power in it..or supply volts.....is the motor still start or not?
I would think that without any power to it, it would allow the maximum amount of fuel to flow and once the engine heats up, because it has no power to it, it will still allow the max fuel and make the scooter run poorly. I don't know that for sure, but that's my opinion.
Depends on weather conditions...if yours stuck open yeah it will start but hot start will be the problem...also eating way much fuel than it should...
Thanks for a great video. I was wondering if i had mine put back together correctly.
50cc carburetor vacuum lines
@@samcollins960 what about them???
I don't think there is any reason to take one apart, because why would you? Just buy another one. They're cheap.
@@radconserv68 The one on my 125 Malaguti Madison was Japanese cost around £130 + U.K. the standard carburettor on the standard fitted Yamaha engine was also made in Japan & cost £500 + .So £130+ for one of these units is hardly cheap ,especially as they can go wrong just as fast & cause you loads of hassles with multiple engine cut outs & poor running .It’s no problem to use a manual choke .Automatics were designed for lazy car drivers & women who thought the old pull out choke levers were to hang their hand bags on .
@@radconserv68 The stock piaggio choke for me is 80€ like bro Im only 16 I dont have that much money.
Hi thank you for your video I have a Piaggio Zip 2T from 2015 same one cut my wiring from auto choke the carburettor is Dellorto 17.5 whitch wire is the positive the yellow or Green thank you very much appreciate
Green is the ground so I'd say yellow is positive....
Hi, just a questio if this was working or broken auto choke, as i can see that in the video this choke is fully extended, and it is not retracted in cold condition. I also have this problem as this needle is not retracting back in 1st position.
I think it was broken.
How many volts you get when measuring? I get 7-9v .. is it normal?
Yes
one question , if the automatic choke isn't good does the scooter start up?
I am not a specialist so I don't know the types of failure for the automatic choke. But if...
A) it fails to extend this should not prevent you from starting your scooter - it would just mean that you will be wasting fuel.
B) it it fails in extended position this may not allow you to start the scooter - i.e. choke is constantly off.
However, if your scooter does not start most probably the problem is somewhere else:)
chavdar levkov If the choke is always on it doesn’t just mean that you are wasting fuel, it can also make the scooter die from too much fuel.
It might flood
Its depends how its broke on or off.if its on...wasting fuel and cold start will be ok but once the engie warmed up it won't start..Hot start will be a nightmare...
If its off position than it will be a nightmare to start it cold weather or cold start however once she warm she will be fine.
How did you managed to unscrew that easily? Mine was so tough to unscrew like it is glued
Yes, mine too. What I am showing here is second or even third time after first unscrewing.
chavy levy how did you managed to loosennit up? It looked clean mine got real bad because i had to use pliers to hold it in. Thanks
@@ninoechavez1402 I don't remember but I think I used the big red pliers you see in the video together with a cloth to avoid damaging the plastics. If you have the opportunity it's best to buy a new choke. Once opened I would not trust it anymore.
Както е закачен може ли да се тества, имам предвид изваден от карбуратора? Ролерчето ми не иска да пали и това е
Може и да е възможно, но поне аз не знам как.
ДОбре де, нали е закачен, то и без това дали е в карбуратора или не не трябва да оказва влияние. Моят не се вади така, колкото и да го държа. Дали е развален. И какво ако е развален, според мен трябва да се вдигне разхода
Bonjour comment savoir si un starter fonctionne svp merci
You can hear it turning over...thats how you know it...or pull it out n test it whit multimeter
Is this adjustable mines letting too much fuel in and not enough air
Nope...thats why automatic...if its stuck seems yours like mine "on" so you need to replace it...its like £12...otherwork around to either put a inline fueltap like manual choke or just closed the supply tho it will make cold start difficult....mine has hot start problem...what I do is when I having problem to start hot is remove the fuel line and close both end..so its not supply extra fuel atm but only just the first start hard and then we good...on cilder days just reconnect it...annoying but better than taking the bus.
@@attilahermann6034 I’ve got a manual choke on mine now works much better I don’t even have to use it at the moment as the air temp is warmer
It is adjustable, it getst adjusted by unscreving that plastic cap if you can get it loosened up.
2:11 I almost threw away my computer.
Hi man. Everytime i turn on my scooter cold first thing in the morning, i have to let it warm up for like 5-10mins and can't drive it straight away becausenit will bog on 1/2-full throttle. Weird thing is when if it is warmed up, mo jogs and runs fine. Could it be auto choke is faulty?
Sounds plausible. After all a choke is supposed to "fix" the mix while the engine is cold. Sounds yours is not working too well. But you know, there could be other explanations too:)
@@chavylevy7355 Polski jestes?
@@radconserv68 tak
Hmm, my scooter has done that same thing after the weather got colder. I had no problems at all during the Summer. One push of the button and I was good to go. I have Kymco Agility 50 4T. I changed the battery to better one, starter motor is new and so is the bendix, ac/dc alternator is also changed to better one. But it still doesn't want to start. Also, my kickstarter broke. :D
In colder weather you have to adjust your fuel mixture with either jetting, or the mixture screw
why talking so soft and whispering ???
Because I suck in making videos:)
@@chavylevy7355 No man, you don't. Thanks for making this vid. I'm currently looking at something similar and this will help. Thank you! 😊👍.
bonjour..
en français cela serait parfait
Shit. I think mine has brojen the tip off
Heats up??? What? Delete this bs video. It is a solenoid type plunger with 12 volt applied it lifts. There's no heat involved it's a gas setup.
Please refer to the attached link. It is well demonstrated there.
@chavylevy7355 you're giving misinformation correct it or I'll report your profile. I am a small engine business owner been working on small engines for over 30 years..and your commentary is absurd.