Mercury outboard oil ratio

[paulgp6022]

Hi, I have a 1977 4.5 HP single cylinder. Does anyone know the ratio for the oil and gas mixture? I was told that it is 100:1 but that sounds too lean to me. Thanks for any help.

 

[Bear]

Re: Mercury outboard oil ratio

100:1 is too lean. 50:1 sounds normal to me:<br /> http://www.iboats.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic;f=17;t=014989