Fuel additives

Perfidiajoe

Petty Officer 1st Class
Joined
Apr 1, 2005
Messages
378
Anybody have thoughts on gumout carb/injector cleaner in the fuel on 2 cycle outboards?
 

roscoe

Supreme Mariner
Joined
Oct 30, 2002
Messages
21,752
Re: Fuel additives

What are you trying to accomplish?<br />Clean the carb?<br />Probably won't do much. If the carb has obstructions and needs work, then taking it apart is the way to clean it.<br /><br />If you are trying to stabilize the fuel and keep the fuel system clean, use SeaFoam.
 

Perfidiajoe

Petty Officer 1st Class
Joined
Apr 1, 2005
Messages
378
Re: Fuel additives

Not trying to clean, just to keep fuel system clean, as for periodic use.
 

bubbakat

Captain
Joined
Oct 29, 2002
Messages
3,110
Re: Fuel additives

Use seafoam or something made for the 2 stroke.<br />The automotive type fuel treatments will wash the oil off your engines parts inside and that ain't good
 

jurgenscraft

Petty Officer 1st Class
Joined
Nov 6, 2004
Messages
227
Re: Fuel additives

My thoughts an fuel additives are as follows, if fuel additives were that good and improved the quality of pump petrol by as much as claimed by the manufacturers, surely the scientists employed by the fuel companies would be researching these products and making the necessary additions to their fuel formulas, secondly all that these additives seem to do is push up the already high cost of pump petrol without much of a benefit to the motor. I raced high speed two stroke in the 250 series super karts 6 speed gearbox and all the high speed stuff, we ran on pump fuel and Shell Advance full synthetic racing two stroke oil ( not suitable for out board motors) and we never found the need to alter the properties of the fuel we were using, some fellows tried some of these carb cleaners and other additives etc, with absolutely no benefit at all. I would strip the carb and do the cleaning myself, rather than relying on so called "FUEL ADDITIVES" I would rather spend my hard earned money on some other item for my boat than waste it on some fuel additive,<br />Kind Regards ,<br />William Wright
 

walleyehed

Admiral
Joined
Jun 29, 2003
Messages
6,767
Re: Fuel additives

In any application where a piece of equipment will set for more than 30 days with fuel in it, Fuel Stabilizer is a must.<br />Most all of the manufacturers of small engines-Briggs, Tec, Kohler, Robins, Honda, etc...., all test-run their engines at the factory with 100LL Avgas because it does not varnish and there is no residual. It does not, however, run well in these engines for continued use, auto pump gas is best, but if it sets, stabilize it and run it a few minutes...
 

LubeDude

Admiral
Joined
Oct 8, 2003
Messages
6,945
Re: Fuel additives

Kenny:<br /><br />I have always been on the same track as ZMOZ, I dont use stablizer and never have. My engines set sometimes for as much as 6 months without use. I have never had any engine I have let sit fail to start or have any deposits in it if I take them apart. I value your advice, can you convince me that what Im doing is foolish?
 

walleyehed

Admiral
Joined
Jun 29, 2003
Messages
6,767
Re: Fuel additives

I don't know if I can convince you other-wise, but I can tell you all of our small engine manufacturers say 30 days on fuel without conditioner (additive). Now, I've been working on small engines as a factory-trained tech for many years, I own 3 boats, 2 snowmobiles, and quite a few giant scale R/C aircraft with gas (chainsaw-type) engines...I use it in every one of them and I NEVER have had any problem unless I forgot to add stabilizer.<br />This spring I have been through maybe 50 lawnmower carbs due to storage without stabilizer, and I can tell you our fuel today is 10 times worse than it was even 5 years ago...<br />I'm not talking about my own engines here, I see it everyday in the mowers and tiller's and all my friends outboards that didn't do their winterization properly.<br />I don't want to convince you, LD...It happens every day....if you see no difference, don't fix what isn't broke, but if everybody used fuel stabilizer, I wouldn't have 75% of the work I do.
 
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