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1990 Yamaha 15hp oil ratio opinion
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<blockquote data-quote="ocbinva" data-source="post: 416322" data-attributes="member: 3676"><p>I have my first 2 stroke outboard but not first 2 stroke motor I have owned. Notice it smoked allot and has quite a bit of unburied oil in the test tub. The guy who I bought it from said it was a 50:1. I downloaded owners manual and bought a Seloc manual and both of those say it is a 100:1 ratio. I do know some ratios were changed by EPA back then. The guys I got it from family worked marinas and the motor has been babied. Any opinions? 50:1 will give good protection, less of a mixture will have less smoke. I even thought about switching to synthetic. Opinions are appreciated. </p><p></p><p></p><p>Sent from my iPad using Tapatalk</p></blockquote><p></p>
[QUOTE="ocbinva, post: 416322, member: 3676"] I have my first 2 stroke outboard but not first 2 stroke motor I have owned. Notice it smoked allot and has quite a bit of unburied oil in the test tub. The guy who I bought it from said it was a 50:1. I downloaded owners manual and bought a Seloc manual and both of those say it is a 100:1 ratio. I do know some ratios were changed by EPA back then. The guys I got it from family worked marinas and the motor has been babied. Any opinions? 50:1 will give good protection, less of a mixture will have less smoke. I even thought about switching to synthetic. Opinions are appreciated. Sent from my iPad using Tapatalk [/QUOTE]
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1990 Yamaha 15hp oil ratio opinion
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