How To Fix A Surging Carburetor: A Complete Guide

I have a Toro 521 that leaks some oil out of where the governor shaft goes through the side of the engine?
Any ideas on what's causing it, and how to fix it?

In my case. Surging Honda GX 390 on a generator was surging only under 1/2 tank of gas. Tried solving it with new or even no gas cap, new fuel hoses, fuel filter, petcock, flushed gas tank, new Genuine Honda carb and even used aviation fuel. Still it would starve out near 1/4 tank and would only run while spraying starting fluid in the carb.
Surging = Fuel Starvation, especially with less than half tank of fuel in my case, even when it was new. A generator runs at high speeds all the time requiring the highest of volume of fuel in the line at all times.
Generators are designed to be low profile and an inherent flaw is that the fuel tank is (TOO LOW) just slightly above the carb fuel inlet for gravity feed through a hose. At high speeds and especially with little fuel in the tank causes a weak flow to the fuel inlet causing starvation/surging.
MY SOLUTION:
I discovered that by raising the entire fuel tank by 8" gave me MUCH better fuel flow down to the carb and the surging went away even with almost no fuel left in the tank. You can definitely see the difference (before and after) with a see-thru clear fuel filter which should always be at least 1/2 full during operation on a high speed motor/generator.
Another mistake I made was storing Ethanol fuel for more than one season in my shed. The stuff goes bad and causes havoc on small engines. Periodically check the color of the stored fuel in a glass jar. It should be clear. If it is golden/urine colored, DONT USE IT in a small engine.. Car engines don't seem to have a problem with the aged fuel. I had about 20 gallons of yellow colored fuel and added a few gallons at a time to an almost full tank of gas in my car and it burned it with no problem.
I hope this helps somebody as I almost gave up and it cost me $ and lots of time, but I won and learned a valuable lesson that nobody ever suggested to try.

I'm a welder and all you need is a set of tip cleaners.

A surgeon ?

Lmao I'm getting a headache listening to this. Holy crap

I'd be on the ground laughing having just been greeted by a service advisor giving me the stink eye😂

On the fixed jet idle circuit on the tecumseh, I believe the plug over the screw in jet is to keep air out. That "can" cause a slight lean surge without it.

Decimal drill bits

Taryl how do you, stop the surging on a khroler lol

You can also use torch tip cleaners

Torch tip cleaners are cheap $ and effective. Just don't break one off in the carb. 😁👍

Don't you got enough pins

That there was a good parody of the old English folks over the pond, but you just be careful as they are bound to come swim over an kick your ass..😅😂

When people look at u tube don't want to look at this rubbish

Many thanjks for the information Taryl, you just saved me $80 by me knowing how to fix my own carb issues

Blow torch tip cleaner set, cheap and awesome for clearing jets and orifices. If you play guitar or know someone who does, keep those old strings, mostly the high E and B & G strings (electric).

Lmao

🐟 and 🍟 thanks limey beans

Thanks for the tip 👍

That is interesting information man. Thanks for the information and video.

I got me some extry pens layin' 'roun' if ya needs any

😏 AWESOME SERVICE TECH TIP 👍 From "OLD SCHOOL" before those new drill sets, 50 year ago, we used the torch tip cleaners!!!!
THANKS FOR THE VIDEO, BE SAFE, - WATCH OUT FOR THE KRAZIES!!! 😍😍😍😍😍

tropical thunder: never go full retard!

You frickin crack me up, its what we need these days, 2023.

You mean, you're using the choke to give it less air (effectively more gas).

Captain hook

Good tips :)

I had a Honda clone that I pulled apart where the passages just ahead of that idle jet were clogged full of boogers once I clean that out with some small wires and compressed air rain great might want to check that for you jump right to drill in your jet

Hope it werent wankering lmao

All I can say is lol.

What about Kawasaki engines? Do you work on them? What about the carbs on them? Like the old 325, 345 John Deere etc, and maybe the old Onan engines they had?

You ain't short of pens that's for sure

Ok can fix my problem I have a Briggs and Stratton engine it will run fine for a moment
but then it will skip or cut out for a second then will run fine can you tell what's causing this?

Tyrell, I have a 26 horsepower Kohler engine was on the Craftsman older model engine. I tried to check the valves top dead center there is no free space in the rocker arms. Wanted to adjust. There is a nut but they do not have lock nut in the center, so whenever I adjust they are still too much Gap and rocker arm will come off. With that all being said is there a engine Kohler that does not have the 20 hex nut in the center for none of my viola justement do and if so how should I adjust

Great video thanks.

Do you have a video explaining what the adjustment screw on both sides of the are for as well as how to adjust the old Tecumseh style carb?

Thanks again

i installed stens carbs on my honda gx 200 and one on my honda gx 390 they only run well under half choke, you heard of this at all ?

Sometimes you need a surgeon.

You are a genius Taylor thanks 4 ur great videos c u Taylor thanks

The British terminology for surging is "hunting", "wonky" just means not working correctly.

Hello Sir Im having the surging problem..I took that carburetor off sooo many times from blowing it out, stick fine wires through all the holes, to starting fluid in all the holes. What made it run without having to constantly press the primer bulb was I cut out a piece of card board for a gasket and that mad it say running but it is still surging Sir.. any Ideas Mr if not thanks still because I love the videos Sir take care and ✌️...Nevermind Sir I had the rubber carburetor gasket on the wrong side of the carburetor 😭🤫

May I borrow a pen Sir

Have a Honda 1132 snowblower, believe it or not left it at the Honda dealer twice in 3 weeks to solve surging, it still does it, what’s my options outside of changing dealer🙄. Carb ‘was’ cleaned even soaked in cleaner, new idle jet and plug bla bla not running right, it was when I put it in the truck but first thing home it surge right back up🤭

Jolly old England.🤣🤣🤣🤣🤣

It is carpettrator, not carbiurator!

Are those teeth real?

Taryl that small round drill bit Kit is the same one I use for drilling stove orifices. Great kit

What would cause a 6.5 Intek to surge with a brand new OEM carburetor?

Unreal! My new aftermarket carburator was surging & backfiring bad! I did exactly what the man said & bam, better fuel flow made my engine run perfect! What a great tutorial!
Thanks so much! ... Bird

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