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  I've got bad gas......................

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Author Topic:   I've got bad gas......................
brhyde posted 12-12-2001 11:36 AM ET (US)   Profile for brhyde   Send Email to brhyde  
No, not the Tums or Rolaids kind of gas! My Yamaha 40 was running beautifully until I added some old gas from a couple of extra tanks I had hanging around in the garage for a year or two. I knew I was making a mistake when I did it. But I did it anyway. Go figure. Now the motor won't start. Took me over an hour to row back to shore yesterday. Thank God it's only a 13' Whaler! Anyway, I'm not especially mechanically inclined but not a complete idiot either (in spite of the fact that I intentionally put old gas in the tank). Now what do I do?
I'm thinking about just getting a new tank, hose and everything else just to be safe. Should I have someone come and clean the fuel filter, too? Is that something I can do myself? What about the little water separator filter that is attached to the transom? Does that need to be changed as well? Just had the motor tuned up a few weeks ago and it was running great until I messed it up. Also, what would be the best configuration of gas tank/tanks for a 1986 13' Whaler. I've got a big tank now-must be about 15 gallons. Could I put in two 6.5 gallon tanks and somehow switch the tank over when it gets empty? That way I could take out the eimpty tank and fill it up at the gas station and still be able to lift it without breaking my back.
Hope y'all can give me some help. I'm new on this board and am enjoying all the good info available. Thanks for your help.
Drisney posted 12-12-2001 12:35 PM ET (US)     Profile for Drisney  Send Email to Drisney     
You can very simply change tanks by pulling the connector off one and putting it on the other. If you do it quick enough the engine will continue running. Or if you prefer you can get a valve to change tanks over and have bove connected at once. On my 17' I have two tanks under the console and I simply switch connectors.
JFM posted 12-12-2001 12:46 PM ET (US)     Profile for JFM  Send Email to JFM     
So are old stand-by "beano" won't work for you either.
Empty your tank and fill with new gas. Put some 2 stroke oil in your new gas 100-1 and use the Yamaha brand if you can find it. Also fill your 2 stroke oil container with it. Check your fuel filter. Spray some starter fluid into carbs and crank with muffs on or engine in water. Make sure your battery is charged, it make take a while. When it starts let the new fuel enter the carbs and you should be OK. If that doesn't work check your plugs. Hope that helps. Regards, Jay
JohnAz posted 12-12-2001 12:51 PM ET (US)     Profile for JohnAz  Send Email to JohnAz     
Bad gas,,,,been there done that,,,Drain all the gas from yur tank,,drain the hose,,either remove the out end or carefully open the end with a plastic pointy something,, then pump new gas through, to flush hose,,then connect to engine,,remove spark plugs and crank engine to get all old gas out,,(pull ignintion safety STOP to prevent dammage to ignition system),,after much cranking and you can smell good gas, re install plugs and hopefully engine will run,,make sure you have water going through system while cranking so as not to dammage water pump by DRY cranking,,, any one else with more ideas this worked for me w/ OMC products jf
andygere posted 12-12-2001 01:18 PM ET (US)     Profile for andygere  Send Email to andygere     
Take the fitting off the motor end of the fuel line and siphon the bad gas into jerry cans, using the squeeze bulb to start the siphon. I would not switch from the 15 gallon tank to a pair of sixes. They are a nuisance and really clutter up the back of the boat. I assume you have the underseat style tank, which has the added advantage of moving the weight a little farther forward. You could just as easily fill a 6 gallon jerry can and transfer to the big tank that way. The other advise on getting your motor running is sound. Definitely change the fuel/water filter as well as the fine inlet screen filter under the motor hood. Aside from the rowing, there should be no permanent harm. By the way, the 13's row pretty well all things considered; been there, done that:)
Bigshot posted 12-12-2001 02:27 PM ET (US)     Profile for Bigshot  Send Email to Bigshot     
As long as it was not filled with rust oeranything, you'll be fine. After about 3 months gas starts losing octane. 2 year old gas will not fire very well. If tank is only partly full, fill it up with super and run it out. If almost full, drain it.
JFM posted 12-12-2001 02:45 PM ET (US)     Profile for JFM  Send Email to JFM     
brhyde, I agree with not replacing your 15 (?) gal. tank, especially if it's under the seat and in good condition. If it's a Pate (12 gal.) brand, like mine, it's about the best you can buy. Regards, Jay

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