fuel/oil ratio for 71' evinrude 25hp

[john1420]

can someone tell me the oil/fuel ratio for my 71' evenrude, 25hp? fuel octane rating? plug size & gap? thanks

 

[JB]

Re: fuel/oil ratio for 71' evinrude 25hp

50:1, 87 octane regular to TC-W3 rated outboard oil.

Not sure on plug, but gap is .030".

 

[Vic.S]

Re: fuel/oil ratio for 71' evinrude 25hp

Champion J4C