
March 14th, 2007, 01:32 AM
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Cadet
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Join Date: Mar 2007
Posts: 8
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Mercury 110 9.8 hp gas/oil mixture ratio!
Can anyone tell me what the fuel/oil ratio is for a mercury 110 9.8hp outboard motor? it is a 1972 model.
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March 14th, 2007, 07:33 AM
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Fleet Admiral
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Join Date: Dec 2003
Location: America's Dairyland. Smell our Dairy Air.
Posts: 8,221
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Re: Mercury 110 9.8 hp gas/oil mixture ratio!
50:1
16oz per 6 gallon tank
8oz per 3 gallon tank
__________________
Hey, Have you seen? They make Really Cool life preservers nowadays.
So "Looking Dorky" is no longer an excuse for not wearing one.
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March 14th, 2007, 03:23 PM
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Cadet
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Join Date: Mar 2007
Posts: 8
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Re: Mercury 110 9.8 hp gas/oil mixture ratio!
Thanks WillyBWright
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July 13th, 2008, 09:13 PM
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Cadet
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Join Date: Jul 2008
Posts: 1
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Re: Mercury 110 9.8 hp gas/oil mixture ratio!
What is the fuel oil mix ratio for a 1969 Mercury 110 9.8HP outboard?
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July 14th, 2008, 12:22 AM
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Petty Officer 2nd Class
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Join Date: Mar 2008
Posts: 184
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Re: Mercury 110 9.8 hp gas/oil mixture ratio!
same,50:1 but if ya want to add a bit extra that "ll be ok too....try 3 oz. to gallon
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June 30th, 2009, 09:58 PM
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Cadet
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Join Date: Jun 2009
Posts: 2
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Re: Mercury 110 9.8 hp gas/oil mixture ratio!
I have a 1979 9.8 mercury,is the fuel/oil ratio 50-1 also? I was told the mixture could be 40-1 because of the newer fuels today,but I'm not sure??
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June 30th, 2009, 11:10 PM
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Seaman
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Join Date: Jan 2009
Location: Kentucky
Posts: 57
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Re: Mercury 110 9.8 hp gas/oil mixture ratio!
50:1 is fine
40:1 is also good as long as plug fouling doesn't become an issue.
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July 1st, 2009, 05:32 PM
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Cadet
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Join Date: Jun 2009
Posts: 2
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Re: Mercury 110 9.8 hp gas/oil mixture ratio!
Thanks Blazer,really appreciate the info.
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July 8th, 2009, 11:10 PM
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Seaman
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Join Date: Sep 2008
Location: Missoula MT
Posts: 67
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Re: Mercury 110 9.8 hp gas/oil mixture ratio!
Thanks! that helps me out also on my new merc project!
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14" Tiderunner and a fishin' pole!
1983 Honda BF 100 9.9
1974 Mecury 40 4.0 - Sold!
1957 Evinrude Fastwin 18 -Sold!
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July 9th, 2009, 01:07 AM
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Petty Officer 1st Class
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Join Date: Jul 2004
Posts: 274
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Re: Mercury 110 9.8 hp gas/oil mixture ratio!
thank god for the perma gap plugs, they dont seem to foul as much as the plugs with the arm 
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