johnson 25hp fuel mix

[dancam]

hi i have a johnson 25hp i believe 1970's, its blue if that helps identify its age better. anyway my uncle tells me he thinks the fuel mix should be 500ml to 5litres which i take o be 10:1. but looking at most of the questions on here its seems 50:1 (which is about 75ml to a gallon) is most common, is it likely that it should be 10:1 or is my uncle perhaps wrong?

 

[Joe Reeves]

Re: johnson 25hp fuel mix

The fuel/oil mixture is 50/1..... 1 pint of 50/1 TCW-III oil to 6 gallons of gasoline. A octane rating of 87 will be fine.

 

[tashasdaddy]

Re: johnson 25hp fuel mix

here's a really good chart: http://www.rctek.com/pdf/fuel_to_oil_ratio_chart.pdf

 

[dancam]

Re: johnson 25hp fuel mix

thanks for replies there really helpful. should be all ok now.