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Fuel mix

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harley ferree

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"hello, i have just bought a 2

"hello, i have just bought a 25 horse evinrude model e25rcsa 1980 model and im trying to figure out the oil to gas mix , i was guessing 50 to one but not sure?"
 
How about a 1976 15HP?
15R76R

How about a 1976 15HP?
15R76R
Same thing? 50:1.

Is there a list of fuel mixtures out there? I also have a 83 115HP Evinrude.
 
Yes post 1964 OMC engines run

Yes post 1964 OMC engines run on 50:1 including those originally said to run on 100:1 that were produced in the mid 1980s

There is an article on another forum with details!
 
I have an old 35hp evinrude o/

I have an old 35hp evinrude o/b with electric start and pull start. Does anyone know the mix of gas/oil?
 
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