
sea-foam is a petroleum product it will not harm any motor. Bad idea for a 2 stroke. Not only that there arnt any internal engine parts to clean. Carbon build up will be found at the very beginning of the muffler, not in the combustion chamber like a four stroke.
Is sea foam good for 2 stroke outboards?
I use Sea Foam when doing shock treatments for my 2-stroke outboards and whisking away those pesky ethanol buildups in no time. I can confidently say that I always save more, in the long run, thanks to this trusty additive. Like good old medicine, the right mix keeps most engine troubles away.
What is the best 2-stroke outboard 2-stroke boat?
Sea Foam outboard 2-stroke is a match made in heaven for anyone who wants to take care of engine troubles and save loads on repairs in the long run. 2. STA-BIL 22240 Marine Fuel Stabilizer
Is sea foam safe to put in fuel?
There are two kinds of sea foam- the spray kind that you fog into the carbs, and the liquid kind you add to your fuel. It is 100% petroleum so it's safe to fog in with the fuel/oil without a loss of lubrication. Ditto. It works great for decarbing your motor. It will smoke like @#$@#$ but that's normal.
Can I use Seafoam to decarb my outboard?
I want to decarb my newly acquired 1979 70hp outboard. I've read some of the suggestions on here and most people say to spray the seafoam directly into the carbs at some point in the process. Is this safe for a 2 stroke motor? Are there lubricating properties with this seafoam? Yes, you can inject directly into the carbs.

Can you use Seafoam in 2 stroke motor?
I also noticed that the instructions show to add 1 once to every gallon for maintenance, but also shows to add 2 ounces of Sea Foam for pre-mix 2-stroke engines.
How do you use Seafoam in a 2 stroke outboard motor?
0:485:50Seafoam Shock Treatment (Cheap Outboard Motor Fix) - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd what I'm gonna do is start my motor and run it for 15 minutes and then turn it off for 5 to 15.MoreAnd what I'm gonna do is start my motor and run it for 15 minutes and then turn it off for 5 to 15. Let it cool and then do it repeat that step.
What is the best fuel additive for 2 stroke outboard?
The Best Fuel Additives for 2 Stroke OutboardsSea Foam SF-16 Motor Treatment.STA-BIL 22240 Marine Fuel Stabilizer.STAR BRITE Star Tron Enzyme Fuel Treatment.YAMAHA ACC-RNGFR-PL-12 Yamalube Ring-Free.Start Your Engines! ... YAMAHA ACCRNGFRPL32 Ring Free Plus Fuel Additive.QuickSilver 8M0058681 Fuel System Cleaner.More items...•
How do you run Seafoam through an outboard motor?
0:203:34Seafoam Shock Treatment - Outboard - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd run it and let it idle for like 15 minutes kill it let it sit you know 15 minutes come back thatMoreAnd run it and let it idle for like 15 minutes kill it let it sit you know 15 minutes come back that idle for 15 minutes and just repeat that until your gallon of gas is gone.
Is Sea Foam good for outboard engines?
Safe & easy to use in all 2- & 4-stroke gasoline marine engines, inboard & outboard. Also great for all types of personal watercraft (PWC).
What is the difference between marine Sea Foam and regular Sea Foam?
0:101:38What is Sea Foam Marine PRO and what does it do? - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd it works to stabilize fuel up to two years as a cleaner it works to clean carburetor circuitsMoreAnd it works to stabilize fuel up to two years as a cleaner it works to clean carburetor circuits and older marine engines and it works to clean fuel injectors and newer marine engines.
Can you put fuel system cleaner in a 2 stroke?
Don't mix carb/injector cleaners in gasoline used in a 2 stroke. Use a direct spray cleaner and spray into the carbs/injectors while the engine is running on the trailer, with water running through to cool the engine.
Can you put seafoam in boat gas tank?
Help your marine engine run smoother and last longer with Sea Foam Marine Pro – just pour it in! Add to every tank to clean fuel injectors and carburetor passageways, cleans and lubricates critical upper engine areas, stabilizes fuel, and helps clean and protect your entire marine fuel system.
Is Sea Foam good for boats?
Sea Foam Marine PRO works great to handle gum and varnish problems, which is why it has been received so well by boat owners. It also helps to add a few gallons of fresh fuel to your tank on a regular basis, so you're replenishing the light ignition vapor needed for chamber volatility.
How can I make my 2-stroke outboard better?
0:4811:032 STROKE OUTBOARD BETTER PERFORMANCE MORE POWERYouTubeStart of suggested clipEnd of suggested clipWell then we have a smoother idle. Then we have a very very smooth top end lots of low end powerMoreWell then we have a smoother idle. Then we have a very very smooth top end lots of low end power smooth power band throughout the entire rpm range of a motor now with these composite Reed's.
How much Sea Foam does an outboard need?
1 pint of Sea Foam mixed with 2 pints of fuel will treat several outboards.
How do you reduce the smoke in a 2-stroke outboard motor?
Using quality oil will go a long way to drastically reduce the amount of smoke your motor pumps out. Try using synthetic oil. Evinrudes ETEC XD-100 is well known to nearly eliminate smoke due to oil combustion. While it is expensive, it is a small price to pay for a more pleasant day on the water.
How do you Decarbonize a 2 stroke engine?
4:267:43DECARBONIZING YOUR 2 STROKE ENGINE - Hitachi RB24EAP LEAF ...YouTubeStart of suggested clipEnd of suggested clipSo you can get it off easy cause I just have some dielectric grease. And all I do really is just putMoreSo you can get it off easy cause I just have some dielectric grease. And all I do really is just put it inside here just move it around a bit okay you don't need a lot of dielectric grease.
What does Sea Foam do for your boat motor?
1:212:14Why and how to use Sea Foam Marine PRO ft. Walker SmithYouTubeStart of suggested clipEnd of suggested clipAnd you know most importantly really it cleans all the old carbon deposits out of your cylinderMoreAnd you know most importantly really it cleans all the old carbon deposits out of your cylinder heads. So you can get that maximum horsepower a great hole shot and top speed.
How do you reduce the smoke in a 2-stroke outboard motor?
Using quality oil will go a long way to drastically reduce the amount of smoke your motor pumps out. Try using synthetic oil. Evinrudes ETEC XD-100 is well known to nearly eliminate smoke due to oil combustion. While it is expensive, it is a small price to pay for a more pleasant day on the water.
How do you use marine Sea Foam?
0:094:043 quick & easy steps to help your boat engine run better (and cleaner)YouTubeStart of suggested clipEnd of suggested clipRun it run it at least twenty minutes and don't be afraid to run it hard marine pro cleans betterMoreRun it run it at least twenty minutes and don't be afraid to run it hard marine pro cleans better under greater heat and compression. So hole shots or running at higher rpm or high speed.
What Is The Best Fuel Additive For 2 Stroke Outboard?
If we’re going to consider brand reputation among boaters over the years, then Sea Foam , YAMAHA, STA-BIL, and Fuel Ox already tick this fundamental checkbox. Sea Foam is versatile and works well for most small engines while STA-BIL, despite being ideal for larger engines, delivers unmatched long-term fuel stabilizing.
When Should I Add The Fuel Additive?
Once you’ve pinpointed that the problem is something that the addit ive can address, there’s almost no reason for you to delay in using it. This is true if you see buildup issues in the carburetor, and most products come in easy-to-use sprays for this purpose.
Can you spray bath an outboard?
Almost any outboard-powered boat that shows the tell-tale signs of rough-riding and surfing even after a complete outboard overhaul should be considered for a spray bath courtesy of this product. It cleans thoroughly because it has a way of getting into every crevice and nook and cranny of your carburetor when it foams up. As a result, I’ve had loads of outboards that ran smoothly in no time the moment I applied it.
Is Fuel Ox made for outboard engines?
The Fuel Ox’s complete fuel treatment has been proved as exclusively made for marine use and 2-stroke outboard engines.
Is fuel additive the same as fuel treatment?
It’s no accident that fuel additives are synonymous with fuel treatments. Once paired with the right type of fuel and engine, these concoctions become no less than power drinks and sprays for most various vehicles and motor-run equipment. I can say the same for the best fuel additive for 2-stroke outboards.
Is Sea Foam good for small engines?
Sea Foam is versatile and works well for most small engines while STA-BIL, despite being ideal for larger engines, delivers unmatched long-term fuel stabilizing. YAMAHA works wonders on pretty much any 2-stroke outboard that bears its name.
Does boat gasoline work?
I can confirm that it works for most gasoline grades as I’ve tried out on basically every boat gasoline brand available and even the higher-ethanol blends out there. I can tell the stark difference it makes when I apply it to the latter. Smoother, quieter rides almost any boater craves for when doing hour-long or more cruising or fishing.

‘Can & Hose’ to The Rescue!
- Using the ‘Can & Hose’ method is an easy and cost-effective way to deliver a high cleaning concentration of Sea Foam Motor Treatment to an outboard’s intake and upper engine areas. It works fast and effective to: 1. clean hydrocarbon residues from fuel injector passageways and carburetor circuits (needles, jets, bowls, nozzles), 2. clean and lubric...
Works Great to Help Overcome
- hard starts,
- rough idle,
- stalls,
- restore acceleration and lost power,
The ‘Can & Hose’ System
- All you need is: 1. a small gasoline can with fresh fuel, 2. one pint of Sea Foam Motor Treatment, 3. water source/flush device (for marine applications), 4. a short section (24″) of matching diameter fuel line (1/4″, 3/8″, or 5/8″) you can buy from a parts store or marine dealer
Instructions
- For high-concentration intake and upper engine cleaning and/or seasonal engine storage, mix 1 part Sea Foam to 2 parts fresh fuel in a small fuel can. 1. With a water cooling source circulating through the engine’s water inlet (always while running), start and run the engine for 5 minutes to heat the intake. 2. Disconnect the main fuel line (upstream) from the primer bulb, then attach th…
More Info
- Sea Foam Motor Treatment is made from highly-refined organic petroleum cleaning and lubricating oils, is safe on all fuel system/engine parts and components, and can be mixed as high as 50% with gasoline. The ‘Can & Hose’ system also works great for RV generators! You can always find more helpful ideas at Sea Foam Official (Youtube channel) and our website’s HOW …