Reply To: ’57 Evinrude 7.5 fleetwin fuel mix

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February 12, 2020 at 6:43 pm #194612
bwanadon
Participant

    I vote 16:1. I have the manual in front of me. Now oil back then and oil today are different. Err on the side of caution, use 16:1. More oil will not hurt anything.

    I have that exact motor. Every time I work on it it runs worse.It’s ripping my heart on and chewing it up. It’s down on my workbench pulled apart once again. I’m going to hone it and put rings in it. If I can get the bolts out of the power head. Well not if but when. I’ve got a Bridgeport mill at work that says those bolts are coming out.

    If you need, I’ve got the owners manual and parts manual. These guys around here are experts, they will give you good advice. Good luck I hear these are excellent motors that run great.

    Don