1:10 is the idle screw. Everyone make sure you turn that screw clockwise (count the # of turns in) until it bottoms out BEFORE your remove it so you can put it back in the same position when you reinstall it. When running, you can increase the idle by turning the screw clockwise and decrease the idle by turning the screw counterclockwise until you have it in the sweet spot. 1:35 is air jet which is known as the air mixture screw in other carburetors. The pilot and main jets are inside the carburetor (bowl must be removed).

Nice! This is so important. I do it all the time now. 3:27 "Everyone thinks this thing is starving for air but what it's starving for is gas." mic drop.

You deserve a harbor freight sponsor for saving all these brand new machines that are clogged. My brand new 3500 is surging right out of the box.

Fixed my problem! I had to use a strand or two of copper wire to unclog. Great call out on the carb bowl drain, didn’t know it had.

Great advice.awesome video. One of the few videos where someone actually is straight forward in explanation and not babbling like an idiot!

What did we do before youtube? This was exactly the fix that I was looking for and took me about 10 minutes, start to finish and worked perfectly. Probably took this guy longer to make and publish this video. Thank you so much!!

Thank you so much for posting this. We’re stuck without power in Texas, and this saved my frozen ass lol

MAN YOU SAVED MY DAY IT IS A TINYJ ET, AND HARD CLOGGED RUNS GREAT NOW THANKS

I tried this fix to my surging Predator, and now no more surge. Fantastic !!! Thanks

Excellent video. Just got back from Lake Hemet. My predator did the surge and die routine.... Got back and found your video.Cleaned jet, emptied carburetor bowl, did an oil change and spark plug change. generator has been running for hours now with no problem. Also added fuel injector additive to the tank. Heads up to everyone, be careful when you remove throttle screw. Throttle adjustment screw is plastic and find thread.. Need to remove that before removing jet. Clean jet and solves a lot of your problems. But putting back the screw and jet is a little challenge

this video is good enough to get you paid..No unboxing, No tools needed, Just facts and results! thx man!

Instead of sewing needle, are used carburetor cleaner and high-pressure nozzle on my compressor in garage. Thank you again for your help. Great video helped me a lot. Same day I was prepared to go and do the warranty exchange at Harbor freight. Now? No need

Thanks! Just pulled the generator out yesterday to check it for the winter and discovered the surging problem. I did what you showed, fixed it. I thought I was going to have to pull the whole carb off, thanks again for saving me the trouble.

Thanks for helping me fix my generator. Sad thing for me, it was surging brand new from out the box with nothing hooked up. Thanks you sir!

I've had this Predator for a year. The most frustrating thing is it would sometimes be smooth, which misled me to think it was fuel related. I had found your video before a recent few night stay at San Onofre and it seemed easy, but while prepping the trailer to leave, it started running smooth, so I didn't do it. Of course at the beach it surged the entire time there, never stalling, but overload indicated every time it throttled back up. O was so afraid of burning up the inverter. Got home, did the fix, cranked it, smooth as the day I got it. Am now draining the bowl after every use, will look for a local station that doesn't have ethanol in the gas. Thanks again dude. 💲

Thank you so much..!...I solved my surge problem in an hour. Your solution was spot-on. I learned from another youtuber to drain the carburator bowl. Alcohol in the gasoline is then cause of the clogging, forms varnish.

Mine behaved in the EXACT same say!! I was paranoid that maybe I wasn't using enough fuel stabilizer or that maybe debris made its way into my carburetor and I was going to have to rebuild it 🙄... But I didnt... And so, THANK YOU SO MUCH for the video my man, you LITERALLY just saved me hours upon hours of scouring the interweb and trying the wrong things. . A "Like" and a "Subscribe" is nowhere near what I owe you, but it's unfortunately all I can do 👍👍 Thank you!

Worked like a charm! I did spray just a tad bit of carburetor cleaner down in the jet hole once I had it out. Cleaned the jet put everything back in and adjusted the idle smooth as silk WHOOOOLAAAA👏🏽👏🏽👏🏽👏🏽

Man this worked thanks so much. I thought there was no way it could be clogged jet as it was brand new...shot some wd through the jet and voila. Thanks again 👍🏼

Wow thank you so much. I only had this generator for 1 month and it started surging. This worked. THANKS.

Thank you for creating and sharing this video! We are ice fishing in Minnesota and you just saved me a huge headache. I had the surging issue and was able to fix it with your help in less than 10 minutes. Have a Happy New Year!🎉

Just used you video and we are back in service. Thank you!

worked great thankyou sir. Took all of 5min to apply your fix.

Thank you so much for sharing this video. I knew my surging was from a lack of fuel and I just kept buying injector cleaner to no avail. It sounds like this would be the winner and I thank you again

You're a genius bro! The easiest fix I've ever had and straightforward quick video. Thanks so much!

Just bought my 3500. Saving this video for reference. Thank you!

I have a Craftsman 3000i inverter generator. Started idling rough only after about 50 hours of run time. I followed your vid and it fixed the problem. Thanks.

This worked perfectly. Another way to prove that specific jet is clogged is if the idle screw doesn’t even work. If you screw it in an out an there is no change to idle its clogged. Thanks for the video man!

I had the same issue. The generator would be pulsating when running. I did what you showed on the video and it runs great now. Thank you for the video.

The EXACT fix for my Predator surging problem! Thanks Eyeout!

Nice video thanks! A little tip upon startup you're supposed to leave it on the start position until the green blinking light turns solid, then switch the knob to the run position. Not sure if it really makes any difference but thats what the manual says to do on startup. It usually takes 3 seconds for that blinking light to turn solid on mine. I am having the same surging idle issue. I've done this fix once before hopefully it works again.

Wow that actually worked great, thanks man! Had the exact same problem with the surging. Took me about 10 minutes to fix with this method. I put a paint dot on the idle screw and counted the turns to get it out (6 full turns). Thanks for posting this!

Good job every small engine has some sort of pilot jet that will sooner or later need cleaning doesn't matter how expensive engine is or generator before you store it stable it

You saved me from ALMOST tossing my unit! Thank you bud

How many expensive service calls has this avoided! I took my largest bit and drilled a hole in the plastic vertical brace which allowed me to to get the idle mixture screw through it and have a straight shot at getting it started and adjusting it. Idles like the day it came out of the box! Also going to use the Home Depot "True FUEL" for a minute before draining and letting it idle dry. This is only used during hurricanes and Freezes (Ahhhh Texas) and the local fuel is complete crap. That's a tiny orifice in that jet! CAN NOT THANK YOU ENOUGH!!

100% spot on fixed mine. It's been surging the last couple of times I used it. I cleaned the jet today and now its perfect! Thank you!!!!!!

Thank you after nearly a can of carb cleaner clearing the rest of carburetor this was the tip I needed. The predator 4000 has the same carburetor. Thanks again for this video. I am ready for hurricane Ian now!

Thanks for the video bud. Took all of 5 minutes to clean and it did the job. Thanks again.

I bought a new one and surged with new gas on eco mode. I just turned up idle 1/4 turn fixed problem glad I didn't bring it back!

Thanks buddy. A two minute job and it’s running great again.

Perfect. My 3500 must be a newer model as it looks a little different but it was the same jet right under the idle screw. No more surging.

Huge thank you, cannot believe it was this simple and I’ve seen so many other “quick fixes” for same issue that just didn’t seem right in my opinion. 👍🏽😎

I know this is an older video but I just bought the 3500 a week ago and its been surging from day 1. Gonna take it back tomorrow and if the new one does i will try this fix. Thanks for the great video.

I have had mine for 4 years I just did the 100 hour oil change. It has a slight surge. I'll check the jet and clean it. I only use 87 alcohol free Marine gas with stabil. I run it once a month for 15 minutes. I primarily use it to run my 110v welders, 50a plasma cutter, and pressure washer.

Thank you for your video, it worked like a charm on my Predator 4375. I had the exact problem you had and this is the fix!

Thanks for rescuing all of us!

Mine recently started doing the same. I'm going to try your fix tomorrow. I have always used non-ethanol fuel and added fuel stabilizer. I'm disappointed that didn't prevent this. But a 10-minute jet cleaning service once a year isn't bad for maintenance.

Thank you so much. That worked. I Also let it soak in fuel additive for a while. Again, thanks.

Can’t thank you enough for taking the time to make this video. Worked like a charm.

Thank you so much..this video fix my idling issue on my predator 3500 inverter.. Thanks again👌👌👌👊👊👊

Thank you so much for this. I’ve been looking for a while and this fixed my problem.

Video continues to save people. Thanks!

Thank you duck you saved me a lot of headache thanks

Bro....same problem & your fix fixed it!!! Thanks!!!

Excellent video, great explanation and detailed video...simple and short. Well done sir!

Brother, I owe you a beer!!!

5 minute fix. Great info! Thank you

Worked like a charm. Thanks!

Worked for me Also! 6 minute fix. Reset the idle screw to the sweet spot and flip the ESC THROTTLE switch until you get it just perfect. Better than before. FYI my generator had sat for about a year. New Battery and fired right up!

My dude, you saved my freaking trip! Thank you!

Bingo! Had the same problem so I turned to the ol youtube. Tried your solution and Bam! Cheers! 🍻

That totally fixed my issue! Thanks so much!

Thank you so much! Great info and results! I hope to be one of those guys.

Thank you so much for vid straight to the point and also great explanation on how to prevent it .

Thanks 👍 Got my generator purring like a kitten

Thank you for posting this video I t worked perfect 👍

Great video what about pulling the bowl off and cleaning the main jet as well good advice for all you all out there. It's up inside the main body underneath the float Flathead screwdriver pulls the first part out and then you can get the rest of it out. Anyone want more help with this just message me

Delete the charcoal canister and re-route the one remaining hose and you can remove that plastic vertical piece that is right in the way! It is only there to support the hoses attached to it.

Perfect fix, nice work!

Another satisfied viewer Many thanks! 🙏🏼

FYI EVERYONE WHO HAS HARD TIME RESTARTING THE PREDATOR 3500 WHEN ITS HOT OUTSIDE... All you have you have to do is remove the gas cap and it will start right up. Just needs to vent. Somehow it took me almost two summers to finally figure this out lol. . ALSO Jesus Christ delivered me from meth, adderall prescription, alcoholism, cigs etc in Sept 2014. No rehab or any other outside help! Just the Lord and His Word!! Eternal life in Jesus Christ alone. Make sure you seek and abide in Him!

Worked perfectly 👍👍

I use non alcohol gas and a little injector cleaner. If I store it (like in winter) I add stabil.

Two words for ya STAY BIL!

“Sucked on it later and ended up spitting”

Thanks for posting, worked for me not sure what happened I have always drained the gas fully after use

Worked for me..

Thanks man. Did the trick.

You guys were lucky! I tried this fix 3 times and it didn't work for me. My gen is a Westinghouse Gen3 but has the same motor in it. I had to take off the carb open the bowl and clean the main jet that is screwed into the base of the carb. What you are cleaning is the pilot jet That pulls gas up from the main jet. Mine works now and will always turn off the fuel valve and run it out of gas from now on.

I put a small inline fuel filter on mine. We'll see if that takes care of a reoccurring ( about every 200 hrs) problem.

@harborfreight hey, have you guys noticed a lot less returns on this item? I’m figuring at least 5,000 unit fixed based off views.

Going to do this on mine! They wanted over $100 to just look at it.

Thank you

Exactly! Mine is completely fixed. Thanks so much!!!!

The clear hose came off of mine at the top and I can't find where it goes

This worked! nice! 👍

Great video. Just picked up a 3500 and it was surging at idle from the first start up. Pulled the jet to make sure it was clean and noticed the jet is unlike what I’m use to seeing in other small engines. You can usually see light through the jet when looking up at the sky. My jet is plugged and does not go all the way through. Is it suppose be plugged in the upper half?

YESSSSSS!!!!!!!!!!! thank you sir !

Shit yes!! I was about ready to start pulling out hair!! This solved my issue. Thank you. How often are you having to do this? Basically every time you use it after it’s been sitting??

Awesome.

THANK YOU!!!!!!

Run (Sta Bil Marine 360) fuel treatment and super unleaded. Since I've used this in all my small engines including lawn mower, snow blower, motorcycles, and 4 wheelers I've never needed to do a carburetor cleaning...

Bless you 🙏

This will work on a lot of different generators and small engines.

I see you plugged your tank vent hose with a bolt. I hope you have a vented cap or drilled holes in it. The tank will create a vacuum and cause the engine to do that if you don't have vent holes.

I own 2 of these and instead of draining the bowl every time I shut them down to store them I removed the screws on the control panel and unplugged the kill switch. Now when I turn the knob to shut it down it continues running until it burns all of the gas in the bowl and then shuts down. I run mobile one synthetic oil, non-ethanol gas and stabil in them and exercise them at least once every 30 days. I’ve never had a surging problem or any other problem.

can you stick a 26G wire in there without taking the idle screw out? I am surprised that is open, like a cup to catch debris. Good call on the fuel bowl drain. Should be a way to access that without taking the cover off. My lawnmower jet clogs after a season of storage on todays crap gas.

I’m trying to run Rioby pressure washer and the Gavin is green but I got no power ? Works when I plug it into the house electrical outlet

You may have to get another size carburetor Jet. It is located above the bowl cape at the bottom of the emulsion tube. You can purchase one here www.6sigmajetkit.com . They also can tell you what size you need depending on your height above sea level.

The real fix is to run non e gas with a stabilizer