Ethanol/gas treatment/Yamaha

[THEFERMANATOR]

Ethanol free if you can find it, but star tron if you have to use e-10. STA-BIL isn't worth the bottle it comes in IMHO. The BEST thing I have found to do myself is to run the engine out of gas when your done boating. No gas in the carbs, no gas to varnish and plug up the carbs. The problem comes in for 2 strokes if they use oil injection that injects the oil directly into the gas. If yours does this, then your engine has no oil in the fuel when you 1st start it back up after running it out of fuel. If the engine is pre-mixed, then disconnect the fuel line, run it out of fuel, and the next time you want to use it hook the line back up, pump it up, and go. I have done this with my 35HP JOHNSON, and have yet to need to touch the carb since 2003, and it sat for about 5 years not being used.

[bradford]

Buy 5 or 6 six gallon jerry cans and make the trip. Or a couple of rolling gas caddys.

Check this site, could be a station closer.

http://pure-gas.org/

[Big-G]

Originally Posted by THEFERMANATOR

Ethanol free if you can find it, but star tron if you have to use e-10. STA-BIL isn't worth the bottle it comes in IMHO. The BEST thing I have found to do myself is to run the engine out of gas when your done boating. No gas in the carbs, no gas to varnish and plug up the carbs. The problem comes in for 2 strokes if they use oil injection that injects the oil directly into the gas. If yours does this, then your engine has no oil in the fuel when you 1st start it back up after running it out of fuel. If the engine is pre-mixed, then disconnect the fuel line, run it out of fuel, and the next time you want to use it hook the line back up, pump it up, and go. I have done this with my 35HP JOHNSON, and have yet to need to touch the carb since 2003, and it sat for about 5 years not being used.

Used to disconnect fuel line and run till out of gas on an older boat. Had a 1985 4 cylinder Merc. Still had carburetor problems. I do this with all my equipment except diesel tractor. Chain saws, generator, power washer, leaf blower etc. glad you cautioned about oil injection. I might disengage and pre-mix.

Thanks.

[steplift20]

Star tron is the answer

[Big-G]

Thanks all for responses. I might start using ethanol gas with the treatment recommended. Will be trucking boat home Sunday.

[SkunkBoat]

Of course, you should also have a 10 micron fuel filter/water separator.

[Big-G]

Originally Posted by SkunkBoat

Of course, you should also have a 10 micron fuel filter/water separator.

Don't know from microns but there is a water separator with recently changed filter

[bradford]

Originally Posted by SkunkBoat

Of course, you should also have a 10 micron fuel filter/water separator.

And get a good one like a Racor with the clear bowl on the bottom and a drain so you can see and drain any water.

[Starzofchaos]

Ethanol gas is fine if you run it in what you use every day. Now when the problems you run into is if you let it set around for too long. Ethanol gas just after two weeks starts to develop what is called phase separation. Where the gas and ethanol has a distinctive boundary layer. Not only that, the Ethanol blends better with water than it will with gas. No gas last forever, usually about 90 days is the max time on non-ethanol fuels. Even with a stabilizer, it might extend it out to 6 months... Still six month old fuel is asking for trouble if you try to use it. Like others have mentioned, the best way to keep the carbs from gumming up is to run it out of gas to make sure that no gas is left in the carbs. Some carbs have drains on the bowls. Next is to get some good spray carb cleaner and spray into each carb before storage. My suggestion for Fuel additives to help with the problem is either BioBor EB(which 16oz treats 240gal~80gal for storage), or the Amsol Gas Stabilizer(1oz to 2.4gal) is a very good product. It should be mandatory for every boat out there to have an external 10 micron fuel filter/water separator.