Ethanol/gas treatment/Yamaha

[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.

[phatdaddy]

running ethanol is not the only problem, it's the crud the ethanol "cleans" out of a non-ethanol tank and gets passed to the fuel system.

definately have a 10 micron filter

[SkunkBoat]

OH! I saw that Florida might start selling E15. Be careful! Never use ethanol higher than E10!!

E15 can also be sold in GA,KS,NE,SD,ND,MN,WI,IA,TN,AL,NC,MI,FL,OH,IL,AR

[Starzofchaos]

I wouldn't doubt it.... I know a few people that has done some testing and found that it says E-10 on the pumps, in fact tested to around E-15... I know people that race go-karts and high performance street cars love E-85. Its around 99 octane, and you can get it for around .30 to .50 cents less than 87 pump gas. The issue with it is you have to test your batches and make sure it is corrected to E-85.

[Big-G]

Originally Posted by 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.

Thanks Starzo. You're advice agrees with my local Yama dealer. One question. Can you mix e-10 with regular gas? Seller put 5 gallons of non-e gas in tank before purchase.

[smokeonthewater]

Yes... E-10 IS 90% low octane gas and 10% ethanol.... Mix in straight gas and you simply end up w e-9 or e-8 or better.