Just bought an old Johnson model code 6BA79E, serial no. B035327. Can anyone suggest its age, the oil/fuel ratio I should use and whether it's OK to use unleaded?
Hi, Tony.<br /><br />Your engine is a 1979.<br /><br />Proper fuel is 87 octane, alcohol free unleaded. That would be 90 octane by your RON octane rating system.<br /><br />Mix 1 pint (16 oz.) TC-W3 rated outboard oil to 6 US gallons of petrol. A metric equivalent would be 1/2 litre of oil to 25 liters of petrol.<br /><br />Good luck.
