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โก Fast Fix for Small Engines: Because your gear deserves to run like new!
STA-BIL Fast Fix Small Engine Treatment is a powerful 4 oz liquid formula designed to restore rough-running and hard-to-start small engines by cleaning carburetors, fuel injectors, and internal fuel system components. It effectively breaks down gum and varnish buildup, eliminates water contamination, and combats ethanol fuel effects, treating up to 10 gallons of fuel. Ideal for a wide range of 2-cycle and 4-cycle engines including lawn mowers, chainsaws, and generators, it offers an easy, no-disassembly solution to keep your equipment running smoothly and reliably.








| ASIN | B00NEG3JHS |
| Best Sellers Rank | #8,268 in Automotive ( See Top 100 in Automotive ) #19 in Fuel Additives |
| Brand | STA-BIL |
| Brand Name | STA-BIL |
| Cleaning Agent Formulation | Solvent |
| Customer Reviews | 4.6 out of 5 stars 6,875 Reviews |
| Global Trade Identification Number | 00073905223034 |
| Included Components | STA-BIL Fast Fix - 4oz (22303) |
| Item Form | Liquid |
| Item Type Name | STA-BIL Fast Fix Small Engine Treatment - Cleans Carbs And Injectors - Fixes Rough Running Engines - Eliminates Water - Treats 10 Gallons, 4 fl. oz. (22303) |
| Item Volume | 4 fluid ounces |
| Item Weight | 4 ounces |
| Manufacturer | Gold Eagle Co. |
| Material Feature | Unscented |
| Material Features | Unscented |
| Model Number | 22303 |
| Number of Items | 1 |
| Part Number | 22303 |
| Scent | Unscented |
| Size | 4 Fl Oz (Pack of 1) |
| Special Features | Cleans the entire fuel system - Simultaneously cleans injectors/carburetors while cleaning the rest of the fuel system, Fixes issues caused by ethanol blended fuels, Fixes poor/non-running engines by eating the gum and varnish that causes rough starts, or no starts, Prevents the need to disassemble the engine and is compatible with ALL small engines including snow blowers, lawn mowers, chainsaws, โฆ |
| Specific Uses For Product | Engine |
| Surface Recommendation | Metal |
| UPC | 073905223034 |
| Unit Count | 4 Fluid Ounces |
| Warranty Description | Everything you purchase from us comes with a 100% Satisfaction Guarantee. Our 100% Satisfaction Guarantee means youโre covered if you are unhappy with the results of the product or if it does not hold up to the claims on the label. |
J**E
Awesome product.
Worked great for me. My 2 cycle weedeater is running much better. I would definitely recommend.
D**E
Great product!
Worked great for me. I had a lawnmower that sat for 3 years. Siphoned out the tank. Added fuel. applied less than an ounce to the pint of fuel in the gas tank. Let it sit for a day. Started fine. These are the Amazon products I used for this and other lawnmowers that didn't need this product. STA-BIL Starting Fluid - Prolongs Starter Life - Upper Cylinder Lube - for Gasoline and Diesel Engines - Guaranteed Faster Starts Down to -65ยฐF, 11 oz (22004) H-veenjor Gasoline Siphon Hose Pump, Hand Fuel Transfer Pump, High Flow Gas Siphon Pump for water Gasoline Oil Petrol Diesel, Manual Fuel Pump with 2 Premium PVC Hoses
R**K
Worked great, everything starting quickly again
Got it running and clean with 2 tanks mixed with this.
T**L
Not magic, but works in a pinch
Had the classic situation of a generator (ie. small engine) with a carburetor and both jets gummed up by E10 fuel. I was able to clean the carb and 1 of the 2 jets manually, but couldn't figure out how to pull the 2nd jet to clean it. Generator ran better after cleaning, but still surged a lot / ran rough. Put this Fast Fix stuff in the tank and ran it for 5 to 10 minutes and the engine ran more and more evenly. Still can't push the choke all the way back in after starting (have to carefully set the choke to get it to run smoothly, but it's way better than before.) It's not magic, but it does seem to work well enough. If you can't work on your engine yourself or don't have a small engine mechanic nearby, it's definitely worth a shot.
C**R
Actually works
It really does work, my old Briggs push mower was stuttering really badly, put some fresh gas and some of this treatment in the tank. Ran really rough for a few minutes, but after about 20 minutes of running, she was running like new again. Good place to start if you don't want to pull the carb off and clean it manually.
B**L
Saved my back from repeated cord pulls.
I was having some issues with my self propelled walk behind lawn mower recently. It would fire right up on the first pull, but when I would turn the engine off to empty the bag, it would take forever to restart. It was to the point that it was literally wearing me out to get the engine to turn over again. I always change the oil; clean or replace the spark plug and clean the air filter before the start of every season. I did some research online and found the carburetor could be causing the issue. Rather than remove and clean the carb, I decided to try an additive. I have to say this product exceeded my expectations. I pumped out what fuel was left in the mower and discarded it. I filled a 2 gallon gas container with fresh fuel and added an ounce of the Fast Fix. The engine appears to be running smoother and almost always restarts with one pull after the initial start up. I would recommend giving this a shot as an economical solution.
P**C
Good Stuff
This stuff works!! I put it in my 3 lawn mowers and a gasoline generator and all 4 seem to be easier to start and run better, the 3 mowers have more power! Will buy again if needed.
P**L
No cap? Why?
This might be a great product, but why did it arrive WITHOUT cap??? Weird. Itโs hard to find a suitable cap for this bottle. And once Iโd have the foil removed, I would have to use it all. This is ridiculous.
B**Y
Great
Put it in a lawn tractor. Let it sit overnight. Started the next morning and was still running a bit rough. Started cutting the lawn and could hear tractor running smoother. Before adding it. Tractor would run and die a few minutes later. Now just a touch of the key and it fires right up. Before it would whirl over for a bit and finally start.
E**N
Good product, good value
Seems to work well and cleans out my small-engine fuel systems.
L**Z
Liquid gold for small engines!
This is amazing stuff! Saved 2 mowers and a generator. We swear by it!
S**R
This stuff is awesome!!!
I don't write a lot of reviews, but it's worth it for this stuff. My snowblower carburetor was pretty clogged, to the point of hardly having any go power. Used one application and a couple uses later, it's now running like new! Def worth it!!
D**O
It works
Product work as instructed! I used 2 ounces to 10ltrs to fix idle on 9.9hp Yamaha outboard idle issue! Left the 91 fuel in 8months and it turned to varnish blocking up idle circuits! Made new batch of 10ltrs of 95 fuel and two ounces of Fast Fix and run for 30min and it fixed it perfectly 10/10
Trustpilot
2 months ago
1 month ago