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300 Yamaha and E fuel

 
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localboy



Joined: 30 Sep 2006
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PostPosted: Tue Feb 07, 2017 8:49 pm    Post subject: 300 Yamaha and E fuel Reply with quote

A buddy at work has a Seaswirl. Last summer the 2 stroke CCM died and he was forced to re-power. He just purchased a new Yamaha 300 with fly-by-wire and will have it installed soon.

He is now realizing all the issues with E10 fuel and has been asking me questions. He said when he had a 20 yr old motor, he wasn't that concerned...but now that he spent $25K...

Laughing

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BrentB



Joined: 15 Jul 2006
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PostPosted: Tue Feb 07, 2017 9:57 pm    Post subject: Reply with quote

m2cw is Yamaha 300 requires 89 octane for max hp and use gas as quickly as possible and as much as possible before refueling. I would use an OEM or RACR fuel and water filter (with inspection bowl for Racor) and change every 50 hours along with using Yamaha fuel additives
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Larry H



Joined: 02 Nov 2003
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PostPosted: Wed Feb 08, 2017 2:00 am    Post subject: Reply with quote

Non ethanol gasoline is available at some marine fuel docks. Cap Santee in Anacortes has it. I would call the fuel docks near my usual cruising grounds and ask about their gasoline.

Here is a link to an online listing of non-ethanol sources in Washington.

http://www.pure-gas.org/index.jsp?stateprov=WA

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ken35216



Joined: 12 Mar 2013
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PostPosted: Wed Feb 08, 2017 8:21 am    Post subject: Reply with quote

They put ethanol in your marina fuel out west? That's crazy!!
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localboy



Joined: 30 Sep 2006
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City/Region: Lake Stevens via Honolulu
State or Province: WA
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Photos: 'AU KAI
PostPosted: Wed Feb 08, 2017 10:50 am    Post subject: Reply with quote

ken35216 wrote:
They put ethanol in your marina fuel out west? That's crazy!!


Oh, yes. Welcome to the insanity of the leftist coast. Most of the marinas now have only E10 and pretty much every station too. I can still find pure dyno gas at the local farm co-op...if I wanna pay a premium.

Here's the kicker: the gas is refined in Anacortes, shipped to Tacoma and then shipped back up to Snohomish. I got this info from the co-op manager. BRILLIANT!!! "It's for the children...". Rolling Eyes
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AstoriaDave



Joined: 31 Oct 2005
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PostPosted: Wed Feb 08, 2017 11:25 am    Post subject: Reply with quote

On land, out of the way places, in BC, I have found it. One on Hwy 1, near Ladyswith. A little more expensive.

Also in Chinook, WA. Lotta business from boaters launching there, or at Ilwaco. Bay side of 101 at a convenience store, hook and bullet emphasis. Cannot recall the name.

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san juanderer



Joined: 12 Aug 2014
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PostPosted: Wed Feb 08, 2017 12:04 pm    Post subject: Reply with quote

The Yamaha owners manual advises to use high octane fuel, all smaller motors can use the lower octane fuel.
As mentioned Cap Sante Marina has non-ethanol, as does Skyline Marina .
alan

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ken35216



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PostPosted: Wed Feb 08, 2017 12:16 pm    Post subject: Reply with quote

san juanderer wrote:
The Yamaha owners manual advises to use high octane fuel, all smaller motors can use the lower octane fuel.
As mentioned Cap Sante Marina has non-ethanol, as does Skyline Marina .
alan


What does "smaller" mean? Under 300?
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hardee



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PostPosted: Wed Feb 08, 2017 1:06 pm    Post subject: Reply with quote

Larry, Thank you for that link. Just found out I can get "real" gas just down the street. That will work Thumbs Up Thumbs Up

Harvey
SleepyC Moon


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NORO LIM



Joined: 24 Apr 2008
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PostPosted: Wed Feb 08, 2017 1:37 pm    Post subject: Reply with quote

localboy wrote:
ken35216 wrote:
They put ethanol in your marina fuel out west? That's crazy!!


Oh, yes. Welcome to the insanity of the leftist coast.

. . . "It's for the children...". Rolling Eyes


And here all this time I thought continuing to require ethanol in fuel was done for the benefit of those centrist Nebraska corn farmers. Live and learn. Rolling Eyes

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ken35216



Joined: 12 Mar 2013
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PostPosted: Wed Feb 08, 2017 5:20 pm    Post subject: Reply with quote

NORO LIM wrote:
localboy wrote:
ken35216 wrote:
They put ethanol in your marina fuel out west? That's crazy!!


Oh, yes. Welcome to the insanity of the leftist coast.

. . . "It's for the children...". Rolling Eyes


And here all this time I thought continuing to require ethanol in fuel was done for the benefit of those centrist Nebraska corn farmers. Live and learn. Rolling Eyes


Make money the old fashion way. Legislate it!
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gulfcoast john



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PostPosted: Wed Feb 08, 2017 9:28 pm    Post subject: what to feed your Yamaha Reply with quote

Years ago I saw pics of sawn-in-half Yamaha blue 10-micron fuel-water and oil filters on another site (theHullTruth?) and became convinced they really are different/higher quality enough to be worth the small price upgrade. They are NOT re-badged Sierra or Racors.

There seems to be absolutely unanimous support among 5-star techs to use only ethanol-free gas if you can get it.
You can get it almost everywhere, use pure-gas.org and post the price there. (Use GasBuddy.com to find the cheapest diesel or gas).
If you must use etoh degraded gas, add Yamalube Gas treatment or Startron (they are 50/50 on that, so they can't all be shills for the company).
They say on the way back in run at Wide Open Throttle for 30-60 seconds to burn off carbon buildup.

Follow the break-in procedures and add Yamalube Ring Free at every fill-up ($49/qt).
Only use Yamaha 4M 4-stroke oil (a bit more, but like you said, it's a $25,000 motor and no one knows better what to feed it than it's Maker).

I agree my DuraMax will gulp french fries oil biodiesel without a burp and always seems anxious to haul a heavy boat with Mobil-1 or Rotella or whatever the GMC dealer likes, but when it comes to outboards I say go with what The Maker specifies and be happy about it.

SimYamaha.com has good prices including free shipping specials on Annual Maint kits. Andy knows everything Yamaha and is a great resource (he had the part numbers for the stainless continuity wires between the mid/lower sections off the top of his head).

In 4 words, I agree with Brent.
Again.
Surely someday I can find something to dicker with him about, but it may be a long time coming.
Happy Boating!
John

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san juanderer



Joined: 12 Aug 2014
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PostPosted: Wed Feb 08, 2017 10:39 pm    Post subject: Reply with quote

In the Yamaha motor lineup, the 300 hp is the only motor requiring the higher octane fuel.
alan
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