Small Engine Won't Run Without Choke - RustySkull Productions 

Can't wait to try this tomorrow on my pain in the ass trimmer tomorrow 😂

I know its 3 years later, but this saved my little gardening butt today. Two enthusiastic thumbs up.

Thank you, after watching a bunch of videos on this subject you are the only one to come up with the answer to my problem.

I figured id add that when the choke is on it creates a vacuum throughout the whole carb and actually draws more gas and less air. It means your engine is no longer able to suck enough gas thtough the lines because of blockage. Check the fuel diaphrams in the carb! Great video thanks for the help!

The screw you're adjusting in this video is the high-speed jet. You can adjust it as you have shown, or a much more conventional method can be used, which is: 1. Start the engine, allow to warm to operating temp. 2. Pull throttle to high speed and hold, adjust the high-speed jet screw in/out to obtain the highest speed with as little vibration as possible. (That's it for the high-speed jet.) In 99% of cases the low speed jet never needs tampering with, and improper setting can cause several other bad conditions. However, if you're ABSOLUTELY SURE you must change the low-speed jet setting, for most carburetors the jet is on the top of the carburetor covered by a polymer cap. Remove the cap, start the engine and allow to run at idle (about 3000 rpm), then SLOWLY adjust the low speed jet in/out until the smoothest operation is reached at the highest speed. Then reset the idle speed setting for running at about 3000 rpm. Re-install the polymer cap. Either of these adjustments can easily be performed in 30 seconds or less.

'ave a little twisty turn of them screws... Love it! Great video and very helpful. Thanks👍

Thanks man! That was the trick that got my "strimmer" going again. 👍

Thanks for the video it helps me getting my weed eater back after being bogging in full throttle. When searching I only find video explaining engines with 2 adjusting screws, this the first I found explaining engines with just a single caprator adjusting screws. Now I get my engine back to work 😀😀 thanks...

Thank you we been having problems with sgs strimmer watched your vid starts every time now thank you

The man on here giving so helpful advise and all you three can say as thank you is about the guy music. Ungrateful lot of xxxxx

Thank you. Great video, this has helped me enormously.

Thank you for making this video bro. I know very little about carbeurters and this was a good source for info👍

Your segment on trimmer run on choke only was very helpful!

Excellent video and explained brilliantly.

Just did a stihl fc?110 bush cutter with these symptoms so l took the carb appart assuming blockage not enough fuel. Did that twice to make sure l put carb back correctly...( pot is legal in Canada). Felt rather frustated, checked a few more UTube vids, l started to hear the words " plugged spark arrestor" over+ over, sure enough that was the bulk of the problem. My early inspection will now include a look at the spark arrestor screen... Enjoyed your video! Nice job! Thanks Perry

Thanks. Good video, good info. You helped me fix my pole saw.

Awesome video, fixed mine in less than 5 minutes. Mine does not have regular screw heads, just a round stub with a notch in it. I used a flat head to turn it using the notch

Thanks for your helpful content. I followed your recommendations however they didn't work, only to discover 2 things: 1. The Choke on my engine was incorrectly labelled i.e. in reverse 2. The throttle cable was too short causing it to flood on restart Thanks again and I hope that this may also help others.

Rusty, love your shirt that's funny shit!

Can’t wait for that husk Varna tune up, I have that. Problem.🤔😊

Thank you you made me feel confident is solving my problem good job

Hi l have a Makita EM2600L had very little use It will start and run with choke tick over without but, will not rev up just cuts out l have cleaned the carb 3 times still won't run properly. There are no mixture adjusting screws any ideas. Cheers Andy

Excellent video - Thanks

🎉Noice!!!

Not sure if you’ve heard this before, but you look like golem from LOTR movies.. but with facial hair.. no disrespect meant .. I like the video, made a lot of sense..

if you are lucky like me and have the right brand carburetor. this info might help you there should have the L screw on the top on the throttle cable part, probably covered by silicone cap or plastic just peel it off and find the L screw

Thanks, a a great clear explanation, worked for me.

Thank you saved the day 👌👌👌👌

About the single best video on this topic. Peace.

Great strimmer music

We have a spring out where the black little pipe goes on the side

That carpet is going to smell like bloody 2 stroke. Also I have a similar engine on my scooter lol.

Excellent, thanks 😊.

Well put together vid mate learned alot. Essentially im a bit stuck with what the answer would be for myself and my 49cc small engine pulls nice, chugs well but doesnt fire and start up going to check the spark sleeve as it wasn’t the most secure. Plugs fine, has fuel and 2 stroke

Good

Yard Machine 3.5 hp tiller. Briggs&Stratton won’t run without choke. Bought roughly 20 years ago.

Very helpful! Thanks

Thanks so much my trimmer is working great thanks to your video cheers

I realize it's hard to diagnose a problem from afar but since you tried did your explanation solve the commentor's problem?

So what im wondering is what would you check in order first to see what happened

Did you do the video on the Husqvarna 128DL string Trimmer?

I've got and SGS 5 in 1 hardly used because its a pig to start. The main issue is that the compression is high and it kicks back whacking my knuckles. There is no problem with fuel flow. I decided to fit a new plug as it was black and sooty. It doesn't start easily on choke and I wondered if more air in would weaken the mix and reduce the compression. What do you think?

You should make video on pull cord replacement I got the cord can't get the box aport

Good day i have a Murray M43x wead eater name off the carburetor walbro. The engine starts when the lever is up but when i but it down all the way the engine revs up can you help me?

Hi thanks for feedback keep up the good work

Great speaking voice and information! I would normally have a hard time understanding yall's accent (I'm from Alabama) but not you, your great!

I want to know why my stram 52cc is cutting off and wants to switch off when I realees the throttle(accelerate) and theirs still alot of fuel in?

Mine was running great before winter. I put sta-Bil in plus ethanol treatment like I do every year. Never problem till now. I think jet may be gummed up ? Comments

Have a challenge extreme strimmer having trouble tuning machine bought a new carb as screws snapped on old one it's really struggling to run choke off half choke it revs but then bogs have the air mixture screw and since iv screwed the throttle screw out it will rin on choke if I go too far it cuts out if tried turning half a turn will rev on half choke but on run it's just boggy any ideas great vid new sub cheers

Awesome video helped me lots with my rc car’s engine

Thanks m8

How can i put a grass deflector on a castelgarden j92 ride on mower

so basically it should run on the 'run' position. i have a 4 stroke hawkvision. i had a hard a time wrapping my head around this untill i watched your video

or in my case, the choke lever says off when on and on when off!

Engine runs only on chock and screw doesn't effect it in any way less it's fully in not matter how far out I go it's dying when chock clicked off and it's brand new

i have a surtec it looks just like this.am wondering if it's a good brand

I have a very similar trimmer and it has on/off on the choke lever. Should the lever be in on(lower) position when startin the trimmer or in off(upper) position when starting it? I noticed the trimmer shuts down when I press the throttle while choke is in off position. So does that mean off(upper position) means choke engaged and on(lower position) means choke disengaged? My thoughts are off means choke disengaged and that trimmer should work when choke is in off position but it seems I am wrong with that.

Why do video editors think loud music is a plus?

Awesome 👏 Thanks for the video !! Petrol ? Gasoline?

Hi, I have a similar problem. It starts easily with the choke and has a stable low speed run. Wen i open up the throttle it dies. I tried to adjust the screw and went trough every possible setting and it sill dies. I have the same engine that you shown in your video.

Really I would be a nightmare but escaped because I am gonna dismantle carburetor but good infoche

I can get my Chinese made Strummer to start on choke but as soon as I so much touch the choke knob to put it to run the motor surges really high and dies out. Can't get it to start at all in the run position. It's is a barrel type cube carb with the idle screw in the center of the throttle knob and the high adjuster on the backside of the carb. Do help if I have been able to present my predicament clearly.

Hi there i need help with my tanaka pro55 brush cutter

Hi mate, bizarrely, mine won’t run with choke on. But when not on runs ok….but smells very rich. I have a ferrex. Is that normal to smell rich or is something sound wrong? Sorry if this is a little vague. Cheers

Ty , this was great help

slighty off topic about choke,but i have an older model sgs strimmer and the problem im having is it will not run once warmed up. ive tried adjusting the fuel mix cleaning filters and most other things and still cant get it to run.i have noticed one thing, and that is it smells very rich on the mixture no matter what i adjust on the screw.also it will run fine for a few seconds when i pull off the fuel feed but as soon as i reconnect the pipe it bogs down then stops. any ideas because up untill this point it was a great little strimmer

I have a 26cc with no screw but same problems should I buy a new carb

Couldn’t make it thru the tutorial for laughing too much. It’s not the instructions or the accent...it’s the t-shirt

I have a weed eater that leaks oil from the exhaust. What can I do to fix

Great video really help me on my outboard now working fine . Would like to ask a questions Duse the exhaust do anything to the speeds of the engine..

I have a Parkside strimmer, when I pulled the string to start it, it slapped back and broke off the red choke for regulating it. So, what to do with it now. ?

The "twisty-turny" thing didn't help me (or my engine). I did some ethnic engineering by putting a screw in the little shelf above the choke lever to restrict it from opening completely. Works well now. BTW, the choke lever works in the opposite direction on my engine. I haven't given up yet, next step will be to take the carb apart and verify there are no restrictions in the main circuit.

While I have the choke off, after getting the motor to start, it goes to choke on automatically. Lol, why my 2 stroke doing that? 🤣

Very informative video but I find the background, "music", distracting.

Can you help me with mine?

My strimmer is starting but cutting out, it runs for a few seconds by moving the choke up and down then dies out. Can anyone help? It's the same model in the video.

what if you dont have they screws

yummy chav

My choke has snapped, can't switch between run and cold start? Easy fix or not?

Cut the background music out man jeeesus

Hi Kawasaki TG 34 not ideling...and heats up quickly and choke it dose not switch off on choke but runs when put on run....it runs and switch off

would help if i'd had the switch ON lol.

can you send me one of those t-shirts - love it I have a four stroke 7hp and it will not start it just backfires ( it's a new motor ) it worked good once and now it's F$@ked any ideas what it may be? (i need help with this shit )

I don't have any screw :( what can I do?

Please help I bought a brand new brush cutter 52cc 2stroke and I fiddled the whole day with the air fuel butterfly valve screw and as I put the choke off the engine dies? What else can I do I even added more oil (as it's never ran before)

Mine was having to much I believe ragarding to this video --thanks by the way :) ...But it also dies after a while if I am not push the gas button

Mine only runs on choke and full throttle. I’ll see if this helps. Thanks!

Is it normal for a trimmer to start with the choke on..? Mine says to pull the string a few times with the choke on, then remove the choke and pull the string again, but mine starts running as soon as I start pulling the string with the choke on. It also starts at full throttle, I have to press the throttle a bit and then the revs drop to idle.

I have a question please, when I put the choke on to start from cold should the port behind the air filter be closed off or open? I have a sgs strimmer as in your video which starts ok but will not run when I turn the choke to the off position which closes the port off.

hey man I like your Music and your straight to the point of my question so I subscribed to your channel. I like that accent as well sort of sound like the GEICO green lizard on their commercials. One more thing you do need to tell all us rookies which one is the low screw? Fred

I have a question, markings on the choke, I have N and C

What damage?

Anyone got a Jomac strimmers with this issue?

I fell a sleep , wasnt sure if it was the strimmer droning on or you.

my machine can not start .it is a new machine .what can be the problem .it 62 cc

Why do you have to move lean screw if it’s never been messed with before.What causes rich/lean to get out of wack.

What if you have a strimmer with the weird adjustment thing is the any way of bypassing it?

Hi, My strimmer is the HYBC5200x with a pull choke, the manual does not say how to turn the choke off just says to the off position . no off possition is marked on it, anyone got any idea as i dont want to force it :)

Hi what the fuel mix for this

excellent video. thanks