Scooter Auto-Choke Problems Explained & How To Fix!

[@charlieoscar09]

What a great little video ..... Thankyou

[@scooterstreetau]

Thanks Chalieoscar, we hope you can take something from this video, thanks for watching and glad you enjoyed it.🙌 Manual Choke is also a valuable tool in the tuning proces and with fuel diagnostics. Use it as it saves time.

[@Sillsii]

5:05 doesn't it need power to adjust itself? how does it get power while in the freezer?

[@scooterstreetau]

It works on temperature and changes position based on the temp of the sensor inside the mechanism. The power adds heat so it can expand to closed position. It does not need power to retract, so we put it in the freezer to speed up the activation process.

[@Sillsii]

@@scooterstreetau oh I thought it expanded via power or something, I was tired sorry. Thanks a lot for the clarification!! :)

[@scooterstreetau]

@@Sillsii All good, thanks for watching and comments👍

[@ClydeSlobbs]

how does it turn itself off?

[@scooterstreetau]

@@ClydeSlobbs It works on temperature and changes position based on the temp of the sensor inside the mechanism. The power adds heat so it can expand to closed position. Watch the video, it is discussed in detail.

[@balamood6183]

If i were to plug the e choke out, the cable that goes to it. Would it be like running the bike completely warmed up but all the time? And also if i were to plug it out when the bike is completely cold and the ignition off would the choke be off and completely down?

[@scooterstreetau]

Physically check the choke position, move to the manual choke.

[@Donbscooters757]

Is this for 2 stroke and 4 stroke scooters ? My scooter hard start unless i unplug the inricher then will start. And have problems idle. . it didn't used to do this .

[@scooterstreetau]

The auto choke system is the same for all types, it is a system which enrichens the fuel supply, the choke may look different but operates under the same principle.

[@twostrokegarage]

hello, i have a "small" problem. recently i gave my scooter a bit of a makeover, put a new exhaust on, rejet, new rollers and springs. but now when i use the throttle the bike takes a very long time to accelerate, like i have to rev it to above 5k rpm before it even moves a little, and acceleration is just painfully slow. i thought it might have ti do with to stiff clutch springs or something wrong with rollers. on unrelated note there has also been a rattling sound coming from the variator like a screw is loose in there or something. scooter in question is a derbi Atlantis with hiper engine. any help appreciated and cheers💪

[@scooterstreetau]

Remove the parts one by one and start with the springs.

[@R_O_B_O_M_A_N]

did u figure it out? i have a derbi atlantis 2T , its a great scoot but i have had to fix every imaginable troubles.

[@twostrokegarage]

​@@R_O_B_O_M_A_NSlow acc was from me still having restrictor in the exhaust. Also changed to lighter rollers. The rattle is still there, and is coming from something loose with the kickstarter, most likely the pinion gear. Flat rollers could also be the problem. Easiest way to tell would be to remove the variator cover and start the scooter without it, that way you can see if its kick or vario issue.

[@balamood6183]

Is it ok to drive with the choke plugged out? The cable that goes to it. Would it harm the scooter in any way?

[@scooterstreetau]

Will be no problem.

[@woody1161]

Hello, ive got a jetforce 50 with a 70cc malossi kit in, 8g rollers and leo vince clutch springs, uprated carb and a leo vince tt exhaust but i can only get about 45mph out of it, any advice. Thanks

[@spicychickennugget3240]

Try getting a over range variator for that extra gearing?

[@scooterstreetau]

is everything derestricted? Upgrade the cylinder and exhaust.

[@Ace01010]

Will it work with any carb? I have a honda Dio AF18 and the E choke has a faulty connection. One of these seems like a perfect replacement, especially for cold starting. Question though? How long do you usually let the choke stay on for the manual one?

[@scooterstreetau]

Yes it will, leave it on for 10 seconds and as you slowly start to turn it off apply a touch of throttle.

[@Ace01010]

@@scooterstreetau Alright so I got the choke and bike still won't start, gas is cycling to the carb. Am i missing something?

[@scooterstreetau]

Check the air filter, enough air flow? Check the fuel flow when cranking the engine, is the fuel flowing to the carby? Check for spark, is it Zapping Blue/white at least 10mm? Test compression and air leaks.@@Ace01010

[@SryFool]

Could my choke be the issue? Basically when cold it stalls when no throttle input and it runs very rich when cold, once warmed up it runs perfect

[@scooterstreetau]

Yes it may be. Check and test it as in the video.

[@SryFool]

@scooterstreetau unfortunately it was not the e choke, it works as intended

[@NickGarm]

Very helpful video - thank you!

[@scooterstreetau]

@@NickGarm Thanks for watching = support👍

[@gabrielwalker421]

my Gilera DNA 180 starts immediately from fully hot or fully cold but needs a bit of throttle to start up when its hot but been off for a few mins. It fast idles cold, idles like shit for a few seconds then fast idles again gradually settling into its idle. When started from warm but not fully hot it needs little bit of throttle to start, idles rough for a couple sec, fast idles at like 2k rpm for 30 sec or so then back down to set idle. Closed idle mixture screw causes engine to eventually die so ik pilot jet is fine and the throttle response is fantastic. I read that these auto chokes have 'wax capsule' in them which expands with heat to push the plunger out. Can this deteriorate over time and how well protected is it against chemicals like fuel, carb cleaner/non-polar solvents etc. Like the choke obviously works but I dont think its as responsive as it once was (2ndhand unit from ebay as i need OEM) or is sticking a bit. Also I'm actually really surprised at how much electrical shit does actually deteriorate gradually rather than it either works or it doesnt and it seems to be a big thing with 'solenoid' stuff like this.

[@scooterstreetau]

Go the manual choke system, it eliminates any guessing so you can get down to the true issue.

[@gabrielwalker421]

@@scooterstreetau do all auto chokes have wax in them?

[@scooterstreetau]

@@gabrielwalker421 no

[@usfsft6217]

Hello! I have an issue with my scooter but it only happens once every 5 rides approximately , so what happens is after about 1min of me riding it sputters and dies . Only way I managed to to start it back on is by closing off the air pipe to the filter and it revs for 5sec before dying down again. I looked basically into everything (air filter, carb,idle mixture,fuel lines , valve adjustment , fuel filter , spark plug ,changed cylinder , checked vacuum lines) only thing I noticed is the air intake hose to the carburetor having a small crack . I had the scooter sitting for abt a month in the sun could it have caused something to go bad in the CDI or this auto choke?

[@scooterstreetau]

Change the manifold if it has damage.

[@usfsft6217]

@@scooterstreetau not the manifold, I meant the part that connects to the carburetor not the one that goes to the engine

[@scooterstreetau]

@@usfsft6217 Change the broken parts, they are not designed to work in a broken state.

[@ScooterMods]

Do you have the link for this choke your displaying?

[@scooterstreetau]

www.scooterstreet.com.au/product/manual-choke-kit-for-dellorto-phva-phvb-carburettor/ www.scooterstreet.com.au/product/auto-choke-for-piaggio-50cc-2t-sym-kymco-scooters/

[@TheFreddan2010]

What should the voltage to the choke be? When i tun my starter its 4v in the contact.

[@scooterstreetau]

I just had an opportunity to test the choke on a 2 stroke, the power is AC and put out 4.6 volts. Ignition on no power, it is only powered when the enigne is running. Power supply when the stator rotates.

[@marenjensine2468]

My choke only move 2 mm, is it possible to repair ? A new in DK cost 110 aud

[@scooterstreetau]

Replace with Manual choke, is cheaper.

[@369HZX]

Hello! I've only get 3V from the wiring. Aprillia sr50 2019. New choke = same problem. Anyone know where that 12V is sourced from in the electrical system? I have ordered the manual choke, but would be nice to get the electric choke to work as well

[@scooterstreetau]

3V is what is required to run the choke.

[@369HZX]

@@scooterstreetau It's not working for me. I swapped to manual choke.

[@iaincreer8760]

Are these auto chokes generally the same thing? I would like to convert my Peugeot Django 125 to a cable operated manual choke. Do you think yours would fit?

[@scooterstreetau]

Find out what type and size of choke and you will possibly find there is an option for manual choke.

[@ropi9992]

Heloo, what spark plug do you recommend for stage 6 mk2 racing?

[@scooterstreetau]

We use BR9ES for ZIP.

[@GY6ScooterAdventures-be2oe]

Thanks for this very informative video! I have a new scooter under 400 km. It seems to run good but before starting it, I usually need to turn the throttle once and start it up. The rpm is only about 1,000 to 1,500 rpm's so I have to baby the throttle a few minutes (or it will stall out) until it starts ideling at around 2,000 to 2,500 rpm's and then it's fine. Do you think it could be the auto choke is not working?? Thank you

[@scooterstreetau]

Check the choke for sure, also the cary may not be adjusted correctly and also you may have an air leak so check from the airbox to the manifold just to be sure. this should be done from the dealer at the workshop prior to delivery to customer so if you have an issue reach out to the selling Dealer👍

[@GY6ScooterAdventures-be2oe]

@@scooterstreetau Oh, its a Carburetor

[@scooterstreetau]

@@GY6ScooterAdventures-be2oe see reply above

[@GY6ScooterAdventures-be2oe]

@@scooterstreetau Thank you very much 👍

[@faw2562]

Hey so my Aprilia SR50 starts first kick in the morning and it starts off with high rpms and drops after a few seconds but if I let it idle for 2mins it dies. Also when i start riding the throttle response is poor and sputter before taking off even when its warm. Could it be a choke issue?

[@scooterstreetau]

Yes, It could be a choke issue, or a spark issue, or a plug issue, or an air issue.

[@TheUtube4mike]

I added some 10W40 to the inlet of the carb and it lubed the choke. Ran the moped around the block twice and it runs well now. I was not able to remove the 2 screws that hold the choke to the carb. Good video, I learned everything I know about auto-chokes from this video.

[@scooterstreetau]

Great to hear👍👍

[@Fatback13]

Dumb question but i need to ask, can choke be fixed somehow becouse in my country the only option is 200eur for keihin cvk18 just the choke :(

[@scooterstreetau]

You can't fix the auto choke, but you can modify it it to work as a manual choke.

[@yajibun9220]

Hey man! Do you have any idea why my 50cc yamaha scooter runs so good when cold for like 2-4mins and then it starts to lose power and can barely go up a hill and atleast 50% off acceleration speed just disappears. The problem has worsened when summer came

[@yajibun9220]

You didnt answer but i think it was the air filter because when i changed it the scooter worked way better

[@threefootflatty3688]

hi mate i’ve been having problems with my moped recently. so i found out i had a split in my fuel line and i needed to fix that immediately, so i ended up replacing them and since then it started bogging out after half throttle and just seemed like it was struggling. i rode it for a few days after that and on thursday last week i was going home and it just randomly started sounding like a piece of metal in a washing machine, just grinding and jolting and struggling to run. i don’t know what’s wrong with it

[@scooterstreetau]

That makes 2 of us. Check out the source of the noise.

[@threefootflatty3688]

@@scooterstreetau it’s hard to tell when it’s coming from since it only happens when i ride, but i think it’s coming from the cvt. i took it apart and noticed who ever owned it last, the plastic variator fan snapped and they never replaced it. it’s a piaggio zip 2t

[@scooterstreetau]

Why not have a look.... Running the engine without a fan will without a doubt casue a major engine failure.@@threefootflatty3688

[@threefootflatty3688]

@@scooterstreetau okay no worries i don’t know if it broke while i was riding it or if was like that a few months ago before i bought it, but what issues could it cause without having it?

[@scooterstreetau]

Over heating of the transmission.@@threefootflatty3688

[@ArthVader09]

My gy6 starts fine but every stop it drops rpm and when you rev it 2-3 times it will go back to normal. Is it auto choke always turning on every stop?

[@scooterstreetau]

Check for air leaks in every rubber part.

[@namaikativputkata202]

i have the same problem any solutions? pls

[@ArthVader09]

@@namaikativputkata202 i just raise my idle screw so that if it drops rpm, it will still be sufficient and not sound like struggling. I dont have any vacuum lines leaks at all

[@DonDinero94]

@@namaikativputkata202any luck? I have the same problem I had to raise my idle screw to the point the scooter wants to move while I’m on it

[@namaikativputkata202]

@@DonDinero94 i bought manual choke and all the problems gone away try it

[@js256scoast]

Hey guys, im experiencing splutter/bog at 3/4 throttle, wondering what your thoughts would be. my set up: Piaggio zip euro2 50cc 2t Stage 6 exhaust MHR replica 70cc kit 5.5 gram rollers 82 main jet

[@scooterstreetau]

You need to eliminate the possible cause. Do this by testing each system, Jet up to 98 and come down from there. Is the needle set to middle. You should only fit 1 part per time and tune to suit to avoid this. It will save dollars and hours of trouble shooting.

[@js256scoast]

yes I did change one part at a time, however the splutter/bog has been pretty consistent. The clip was initially on the leanest top notch so I moved it to the middle which helped somewhat in the mid range but still the same issue from half throttle onwards@@scooterstreetau

[@scooterstreetau]

What did you do or change when the issue first presented?@@js256scoast

[@js256scoast]

I went from a 82 main jet to a 78 main jet with not much change.@@scooterstreetau

[@js256scoast]

I went from an 82 main jet to 78 main jet but it didn't change much@@scooterstreetau

[@black63ford]

This is a very informative video. I now know how this works. Is this available in the USA.

[@scooterstreetau]

Thank you, yes it would be available in the USA. Search local scooter part suppliers.

[@chrisdeegenaars1168]

Where are you located and what does a manual choke cost

[@scooterstreetau]

Gold Coast, approx. $25.

[@fraserm803]

Dont quite understand....if there is no "spike" on the manual choke how does it block the carb hole.

[@scooterstreetau]

The rubber seal does the job of blocking, the spike does the locating.

[@paulbudford]

I've never heard of putting them in the freezer. Every day's a school day. 👌

[@scooterstreetau]

Just like a beer , better icy cold.

[@magamen6572]

My choke keeps falling out of my scootstar racestar 50cc theres no way to hold it in the fixings are missing i brought this brand new as well

[@scooterstreetau]

Ask the selling Dealer for assistance.

[@MasonBurroughs-k4g]

Do you have Genuine scooters there? P.G.O is another name for them. I have a 2008 buddy 50. I put a Amazon big bore kit on. Kit was ACTUALLY decent quality for $ I chamfered the inside of ports etc....bike locked up like 10times on way to store & back from running lean. Obviously I have a Massive air leak somewhere correct? Idk how I didn't melt the piston😬😓💯

[@scooterstreetau]

Genuine and Buddy are the American renamed PGO brand scooters. Was the engine setup for the BBK?

[@MegaSafetyFirst]

Big thank you for this great explanation!!! Showing the different scenarios at the end really helped 👍👍

[@scooterstreetau]

Thanks heaps, glad we could help you🙌

[@123Ansido-uf1nv]

I changed the auto choke with a brand new one and it works but not as it shoulds

[@scooterstreetau]

Thiat would be confusing, check the choke and check the carb settings, you may have anther issue.

[@WillemVanheerden-q8j]

Hi my carburater don't give petrol to the spark plug

[@scooterstreetau]

Oh no..

[@TheBarrynorth]

Agreed - great video - straight forward - applied it to my typhoon and all now seems fine - thanks

[@scooterstreetau]

Thanks Barry, as simple as it is this is one of our most valuable videos in terms of self diagnosing these issues and determing how to resolve.

[@daveanderniesmotorizedbike1355]

The first thing you would check and see if you have power to the choke!!! And if not how to fix the hot wire!!!!

[@scooterstreetau]

Yes good addition to the troublesome choke. We remove the choke and have a special connection which connects it directly to a 12v battery, you can visually see the choke extend into the OFF position. Or the freezer to have it retract.

[@Donbscooters757]

Im going to convert to manual choke try to do it tomorrow see what happens

[@scooterstreetau]

Ok, ensure a good seal at the choke/carby.

[@shuddhodhanshetty5839]

Beautiful explanation of electronic choke working❤❤. Thanks a ton.. Helped me diagnose the issue with my scooter too! 😊

[@scooterstreetau]

👋 So glad to hear! The purpose of our video. The help we needed when we were younger.

[@coleEmmm96]

No icecream in the scooter street freezer only auto chokes,cranks & bearings

[@scooterstreetau]

😂Ice creams fill the freezer once a month.

[@charlesdao4000]

the electric automatic choke turn to Human Choke ^^ !

[@scooterstreetau]

YES!😁

[@JrodBooya]

That's an auto enricher lol

[@scooterstreetau]

Yes👍

[@49684]

🍕🍕🍕🍕🍕

[@scooterstreetau]

Cowabunga!