[hitman4]

Hi everyone I picked up a 87 stratos with a 1984 90 hp Mariner from an estate sale I have ordered a manuel but it won't be shipped till next week I didn't see any sign of it having oil injection so I want to make sure that 50:1 is the correct ratio The serial number on the motor is 6474234 if that helps.

[S.T. Marine]

its 50:1 or 2.5 ounces a gallon

[Spidybot]

And still 87 octane. No benefits from using higher grade fuel.

[hitman4]

Thanks all