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Ask Noel Schembri Your Own Question
Noel Schembri
Noel Schembri, Marine Technician
Category: Boat
Satisfied Customers: 1937
Experience:  Advanced technical diploma
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I have a 2 stroke outboard motor, Mercury 50 HP, 4 Cyl 2

Customer Question

I have a 2 stroke outboard motor, Mercury 50 HP, 4 Cyl 2 carby (just bought)
I would really want to know the correct mix ratio, oil to petrol
Standard Fuel Tank is 23 litres, so how many litres of oil is needed to make
the correct mix !
And also what year is the motor (serial number :(###) ###-####)
Francis Scotty
Submitted: 6 months ago.
Category: Boat
Expert:  Noel Schembri replied 6 months ago.

Hi Francis my name is ***** ***** i will assist you. So the correct fuel to oil ratio for your engine is 50:1. So for 23 liters you should add slightly less then 1/2 a liter of oil as 1/2 a liter is with 25 liters. Thus for the age of your engine i suggest you add 1/2 liter it would not do any harm. as for the year for your engine it is a 1984 model.

If you require further assistance let me know.


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