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Old March 14th, 2007, 01:32 AM
wolfpit360 wolfpit360 is offline
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Default 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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Old March 14th, 2007, 07:33 AM
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WillyBWright WillyBWright is offline
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Default Re: Mercury 110 9.8 hp gas/oil mixture ratio!

50:1
16oz per 6 gallon tank
8oz per 3 gallon tank
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Old March 14th, 2007, 03:23 PM
wolfpit360 wolfpit360 is offline
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Default Re: Mercury 110 9.8 hp gas/oil mixture ratio!

Thanks WillyBWright
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Old July 13th, 2008, 09:13 PM
mtrockman mtrockman is offline
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Default 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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Old July 14th, 2008, 12:22 AM
cannonford57 cannonford57 is offline
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Default 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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Old June 30th, 2009, 09:58 PM
mike-in-ev mike-in-ev is offline
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Default 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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Old June 30th, 2009, 11:10 PM
blazer81.6 blazer81.6 is offline
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Default 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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Old July 1st, 2009, 05:32 PM
mike-in-ev mike-in-ev is offline
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Default Re: Mercury 110 9.8 hp gas/oil mixture ratio!

Thanks Blazer,really appreciate the info.
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Old July 8th, 2009, 11:10 PM
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Default 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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Old July 9th, 2009, 01:07 AM
green4themoney green4themoney is offline
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Default 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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