1978 Evinrude 140hp

[JJFRAZ]

I have a 1978 140hp Evinrude and I need to know the oil/gas mix and what size spark plugs to use.I have no clue. Thanks

 

[moderator1]

Re: 1978 Evinrude 140hp

Moving to Outboards.

 

[Dhadley]

Re: 1978 Evinrude 140hp

Welcome!<br /><br />Fresh 87 octane and good oil at 50:1 (1 pint to 6 gallons). Use Champion plugs only. (Q)L77JC4.<br /><br />Good luck!