Ethanol/gas treatment/Yamaha
 

Bought another boat. 2005 2 stroke 50hp Yamaha. Planning on using gasoline with ethanol and treating with Stabil. Last owner advises against doing so. He also used ethanol gas with treatment but switched to non ethanol gas after spending big bucks on cloughed jets. I can get non ethanol gas but have to travel 30 miles one way. Any advice would be appreciated.

I have had no problems with ethanol gas & Startron additive. I use the 40 gals or so of gas from November in May.

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.

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/

Run carbs dry
 

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.

Star tron is the answer

Thanks everyone
 

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

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

10 micron
 

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

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.