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yamaha 15hp 2 stroke 100:1 or different
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<blockquote data-quote="ohiobass" data-source="post: 157836" data-attributes="member: 3941"><p>Like above posts state, these motors were meant to run on 100:1 ratio initially, but for "safety", they now state 50:1.</p><p>I run my smaller outboards (15 hp or 9.9hp) on a 50:1, 100% synthetic, with either Seafoam or Yamaha Ring Free in every gallon of gas.</p><p> I run full throttle more than 50% of the time also, so the 50:1 is a good thing.</p><p></p><p>I also "shock" my outboards at least once a season, using Seafoam Deep Creep..</p><p></p><p>I'd probably say a 60:1 is a good compromise, and safe bet, if wanting to run a leaner oil mixture. </p><p></p><p>The oil injection outboards have always ran a 100:1 ratio at lower rpms, and kicking to a 50:1 at higher rpms. :wink: </p><p></p><p></p><p> 8)</p></blockquote><p></p>
[QUOTE="ohiobass, post: 157836, member: 3941"] Like above posts state, these motors were meant to run on 100:1 ratio initially, but for "safety", they now state 50:1. I run my smaller outboards (15 hp or 9.9hp) on a 50:1, 100% synthetic, with either Seafoam or Yamaha Ring Free in every gallon of gas. I run full throttle more than 50% of the time also, so the 50:1 is a good thing. I also "shock" my outboards at least once a season, using Seafoam Deep Creep.. I'd probably say a 60:1 is a good compromise, and safe bet, if wanting to run a leaner oil mixture. The oil injection outboards have always ran a 100:1 ratio at lower rpms, and kicking to a 50:1 at higher rpms. :wink: 8) [/QUOTE]
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yamaha 15hp 2 stroke 100:1 or different
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