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#60139
Pete
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    No need for 100LL av gas these engines are low compression and run great on 87 pump gas, save you $$. I use (and suggest) E free on outboards & lawn equipment. As for oil ratio for a service engine that does fishing, idling, trolling, cruising, water skiing, etc 50:1 will do fine with a quality TCWIII oil. But it has been proven the higher the sustained rpm the more oil a 2 cycle needs. Oil ratio is a function of duty cycle, race outboards use a lot more for sustained rpms, same with 2 cycle sport bikes depends on how they are used like dirt, high speed track, etc . There is a practical limit on how much 2 cycle oil based on duty cycle use and the jetting and cylinder temp is part of it to get the best power output.