STA-BIL Marine Tune-Up [22313]

Marsoni

M251S

$12.99

Get it in 3 business days with 1 day shipping. Friday, May 29

STA-BIL Marine Tune-Up [22313]Marine Tune Up When watersport engines are running rough, its time for STA BIL Marine Tune Up. The easy to use additive pours directly into the fuel tank to address issues caused by ethanol blended fuels or plain old, neglected fuel systems. One treatment is enough to restore lost engine performance in any gasoline powered watercraft like jet skis, speed boats, and PWCs. Try it next time the engine seems to be running a bit rough, unlike you remember

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I recommend this product for engines that will in fact start but not run well. I highly recommend it for that specific purpose, which it is designed for. It cleans the inner workings of the carburetor. Of course, you will have a cleaner carburetor if you take it apart and clean it with proper tools and a proper carburetor cleaner. You spray it in the gas tank, start the engine, and let it run a bit. It will not start an engine with a totally plugged up carburetor. Nothing is going to do that. Nor is it a fuel stabilizer, as one previous reviewer seemed to think. Nor is it a product to be used to bring life back to stale gasoline, as another reviewer seemed to think. The only thing to do with stale gasoline is drain it out and pitch it. Nor is it a product to be used for cleaning a carburetor you have taken apart to clean. You should use a proper carburetor cleaner for that purpose. I've given it four stars because it cleans out mildly plugged up carbs. It is not a miracle solution for really neglected carbs as the name suggests.

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Reviewed in the United States on April 12, 2020

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Ray

Draper, US

★★★★★ 5

Helps fixing small engines

Size: 2 fl oz

⭐⭐⭐⭐⭐⭐⭐

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Reviewed in the United States on May 16, 2026

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JustAGeek

Waukegan, US

★★★★★ 5

It works like magic, saved me $150.

Size: 2 fl oz

I filled 1/4 tank of gas into my snowblower which I could not started, sprayed about 15 seconds of Start Your Engines, rock snowblower to mix well, let it sat for an hour. I pulled string and yet couldn't start engine. Unscrewed spark plug and spray some into cylinder, put the spark plug back and pull the string. ENGINE STARTED!!! SAVED ME AT THE LEAST $150.

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Reviewed in the United States on March 1, 2026

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Bear

Port Orchard, US

★★★★★ 5

Great

Size: 2 fl oz

Great

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Reviewed in the United States on May 22, 2026